CFM Fleet Highlites - Atlantic Airways

1 CFM Fleet Highlites A publication covering cfm56 Fleet activity / February 2016 CFM, cfm56 , LEAP and the CFM logo are trademarks of CFM International, a 50/50 joint company between Snecma (Safran group) and GE. The information in this document is CFM Proprietary Information and is disclosed in confidence. It is the property of CFM International and its parent companies, and shall not be used, disclosed to others or reproduced without the express written consent of CFM. If consent is given for reproduction in whole or in part, this notice shall appear in any such reproduction in whole or in part. The information contained in this document may also be controlled by the and French export control laws. Unauthorized export or re-export is prohibited. Statistics Operation Line Shop General Documents Commercial Product Support Department CFM International, Inc.

2 Cincinnati, Ohio 45069 CFM International Direction de L apres-Vente Civile Etablissement de Melun-Montereau Boite Postale 1936 77019 Melun Cedex France Statistics CFM Proprietary Information subject to restrictions on the cover cfm56 Fleet Highlites February 2016 2 cfm56 program status Data through January 2016 Engine model Aircraft* Engines* Operators** Cumulative hours Cumulative cycles cfm56 -2A (E3/KE3/E6) 41 193 4 2,506,455 973,705 cfm56 -2B (KC/RC135) 470 1,966 4 14,853,954 6,187,634 cfm56 -2C (DC8-70) 110 525 12 16,427,973 6,942,478 cfm56 -3 (B737-300/400/500) 1,989 4,496 238 215,275,699 152,521,752 cfm56 -5A (A319/320) 535 1,191 47 55,030,074 31,936,042 cfm56 -5B (A318/319/320/321) 3,360 7,183 180 147,961,458 84,823,987 cfm56 -5C (A340) 247 1,133 44 67,807,314 10,087,449 cfm56 -7B (B737NG) 5,749 12,269 216 269,826,979 141,119,952 Total 12,501 28,956 566** 789,689,906 434,592,999 * Aircraft registered and engines delivered to customers ** Customers operating cfm56 engines cfm56 reliability rates Rates/number of events 12-month rolling average Data through January 2016 Unplanned removal** Shop visit ** IFSD** ATO** Aircraft dep rel %** Total* rate | count Engine rate | count Total* rate | count Engine rate | count Total* rate | count Engine rate | count Total* rate | count Engine rate | count Total* rate | count Engine rate | count cfm56 -2C (DC8-70).

3 000 0 .000 0 .000 0 .000 0 .000 0 .000 0 0 0 0 0 cfm56 -3 (B737-300/ 400/500) .044 144 .034 112 .042 136 .035 115 .005 17 .003 10 .019 21 .011 12 - - cfm56 -5A (A319/320) .028 53 .021 40 .075 143 .065 125 .002 3 .002 3 .029 15 .014 7 - - cfm56 -5B (A318/319/ 320/321) .018 330 .014 254 .040 734 .033 614 .002 43 .001 25 .011 65 .004 26 - - cfm56 -5C (A340) .028 68 .025 59 .048 114 .041 98 .006 15 .005 13 .070 6 .070 6 - - cfm56 -7B (B737NG) .014 479 .012 388 .034 1117 .030 991 .001 45 .001 33 .005 43 .003 25 - - * Total includes engine causes and other related engine events such as FOD, customer convenience, etc. ** Per 1000 EFH ** Per 1000 departures ** Populated using sampling method (customers, qty D&C's and departures)Operation CFM Proprietary Information subject to restrictions on the cover cfm56 Fleet Highlites February 2016 3 Operational events ATOs/IFSDs, January 2016 Date Aircraft Position Type Event Cause Event details January 2 737-700 2 cfm56 -7B ATO Non-engine Slow acceleration (Inspections OK acceleration check within limits released aircraft) January 4 737-800 1 cfm56 -7BE ATO Non-engine Birdstrike (Two fan blades/platforms damaged replaced two fan blade pairs / platforms released aircraft) January 5 737-700 2 cfm56 -7B ATO Engine Slow/hung acceleration (Replaced EEC cleaned sense line released aircraft)

4 January 5 A320-200 2 cfm56 -5A-1 ATO Engine Low oil pressure indication (Oil pressure / quantity OK replaced oil pressure switch released aircraft) January 6 737-800 2 cfm56 -7B/3 ATO Engine Slow acceleration / asymmetric thrust (MFP impeller rotation check failed replaced MFP replaced HMU as precaution released aircraft) January 7 737-900ER 2 cfm56 -7B/3 IFSD Engine Low oil quantity / pressure (Oil quantity zero oil filter changed previous night wet motor showed leak at oil filter seal not replaced corrected released aircraft) January 9 A320-200 2 cfm56 -5B/3 IFSD Non-engine Engine fire fault (HPC stage 9 duct cracked several harnesses / heat shields with heat damage replaced damaged tubing/hardware released aircraft) January 10 A320-200 1 cfm56 -5B/P ATO Engine PFR message / VBV HMU message (VBV system inspections / actuation checks OK replaced VBV gear motor / VBV sensor released aircraft) January 10 737-800 1 cfm56 -7B/3 IFSD Non-engine Fuel quantity loss (Root cause identified as crossfeed valve actuator corrected released aircraft) January 15 737-500 1 cfm56 -3-B1 IFSD Non-engine Low oil pressure (Replaced oil pressure indicator released aircraft) January 21 A320-200 2 cfm56 -5B/3 IFSD Non-engine Fluctuating oil quantity indication (Dispatched with oil quantity indication inop released aircraft subsequently replaced oil quantity indicator) January 21 A340-300 3 cfm56 -5C4 ATO Engine Reverser unlock ECAM (Reverser put on MEL released aircraft)

5 January 22 A320-200 1 cfm56 -5A/F ATO Non-engine Birdstrike (P2/T2 probe missing fan blade damage fan case abradable shroud damage replaced engine) January 25 737-800 1 cfm56 -7B IFSD Engine Noise (Metal in tailpipe BSI showed unserviceable HPT damage replaced engine confirmed HPT blade under platform separation) January 28 A320-200 2 cfm56 -5B/3 IFSD Engine Power loss (Replaced MFP / HMU / fuel filter BSI OK released aircraft) January 29 737-700 2 cfm56 -7B ATO Non-engine Birdstrike (Inspections OK released aircraft) January 29 A321-211 1 cfm56 -5B/3 IFSD Engine N2 at zero (Low oil quantity oil staining on tank broken VBV flex shafts debris on EMCD metal on front scavenge screen replaced engine) Continued on next pageOperation CFM Proprietary Information subject to restrictions on the cover cfm56 Fleet Highlites February 2016 4 Continued from previous page Date Aircraft Position Type Event Cause Event details January 30 737-500 1 cfm56 -3-B1 ATO Engine Noise / yaw / EGT light (Replaced engine) January 31 A340-300 3 cfm56 -5C/F IFSD Non-engine Low oil quantity (Replaced oil quantity transmitter released aircraft) January 31 A321-211 1 cfm56 -5B/3 IFSD Engine Several ECAM warnings (Fan frame strut damage RDS broken replaced engine) Article Index CFM Proprietary Information subject to restrictions on the cover cfm56 Fleet Highlites February 2016 5 Overview The following articles are published in this February 2016 issue of cfm56 Fleet Highlites :Page 06 cfm56 -7B SB 72-0981.

6 New fire detection harness (16-02-2611-01) Page 07 cfm56 -7B SB 79-0037: introduction of a new OFDPS (16-02-7921-02) Page 09 cfm56 -5B Starter damage due to oil loss from loose drain plug (16-02-1213-03) Page 10 cfm56 -5B FAA-2015-2983 AD: cfm56 -5B for TRFs (16-02-7256-04) Page 10 cfm56 -7B Fan frame shroud V-groove PTFE on-wing repair (16-02-7223-05) Page 11 cfm56 -7B Best practices: fan blade moment weight measurement (16-02-7221-06) Page 12 cfm56 -5B/-7B Harmonization of center vent tube seals (16-02-7255-07) Page 13 cfm56 -7B Fan case abradable best practices available (16-02-7223-08) Page 14 cfm56 -5B Fan frame repair after removal for RDS housing leakage (16-02-7223-09) Page 15 cfm56 -7B TGB line 2 seal: closure of field plan (16-02-7262-10) Page 15 cfm56 -All CFM LEAP-1A powers Airbus A321neo first flight (16-02-7200-11) Page 16 cfm56 -All CFM orders strong in 2015; LEAP engine surpasses 10,000 orders (16-02-7200-12) Ideas for a Fleet Highlites article?

7 For CFM-Inc customers, email For customers, email Line CFM Proprietary Information subject to restrictions on the cover cfm56 Fleet Highlites February 2016 6 cfm56 -7B SB 72-0981: new fire detection harness (16-02-2611-01) This article announces the introduction of a new cfm56 -7B fire detection harness by SB 72-0981. The current MW0325 VIN CA243-01 (340-406-801-0) and MW0326 VIN CA244-01 (340-406-901-0) fire detection harnesses (Esterline) have experienced premature removal due to shielding braid wear and terminal lug ceramic breakage. Improvements Improvements have been incorporated into the new fire detection harness design (Figure 2) and documentation to address: Broken ceramic/lug o Assembly documentation was revised to highlight potential risk of mishandling Worn/missing braid o AMM 70-70-01 was revised in October 2015 to extend repair criteria (Aluminum tape and lockwire repair) to No Limit CFM has worked with Boeing to propose design improvement of harness, addressing all findings: New semi-rigid harness Improved routing and additional brackets, helping eliminate potential lug/ceramic damage No braid Figure 1.

8 Location of MW0325 and MW0326 harnesses SB 72-0981 new fire detection harness Category 7 SB 72-0981, issued October 20, 2015, announces the production introduction and spare parts availability of the new MW0325 and MW0326 Fire Detection Harnesses with a new Meggitt design: - Old: Esterline (Auxitrol) MW0325 VIN CA243-01 (340-406-801-0) and MW0326 VIN CA244-01 (340-406-901-0) - New: Meggitt MW0325 VIN 8960-01-002 (340-406-811-0) and MW0326 VIN 8960-02-002 (340-406-911-0) The old harness MW0325/0326 can be replaced by the new harnesses as a set per Boeing SB 737-26-1142. Mixing the old and new harnesses is not allowed the new harness system must be installed as a complete set. The Esterline (Auxitrol) harnesses will be maintained and available as spare parts for field use only. Figure 2: New fire detection harness design Semi-rigid harness No braid Line CFM Proprietary Information subject to restrictions on the cover cfm56 Fleet Highlites February 2016 7 cfm56 -7B SB 79-0037: Introduction of a New OFDPS (16-02-7921-02) Background In 2013, the cfm56 -7B experienced an increase in the number of low time Oil Filter Differential Pressure Switch (OFDPS) removals due to switch disagree faults.

9 Faults were observed on those OFDPS before 3,000 EFH, causing Delays & Cancelations and maintenance burden. This fault affects only ground operation, as the annunciation of switch disagree faults is inhibited in flight. Figure 1: OFDPS description and operation Investigation Root cause analysis on returned units revealed infant mortality due to two main contributors: 1. Internal contamination on the micro switch contacts 2. Marginal force applied on the micro switch contacts Figure 2: X-ray cross-section of micro switch in actuated position Improvements Several improvements were introduced on a step-by-step basis, as soon as available, in order to continuously improve the OFDPS reliability: Step 1: OFDPS containment: Improved ATP (Acceptance Test Protocol) + SB79-0035 issuance for suspect batch. Step 2: Micro-switch extra wash: Additional cleaning in production to improve removal of internal contaminants.

10 Step 3: OFDPS process: Rejection of OFDPS with lowest force on micro switch contacts + optimization of micro switch orientation Step 4: OFDPS design: Increase magnet force to increase pressure on micro switch contacts + Removal of bi-metal lock blade to create a daily activation of micro switch, keeping the contact surface clean. Figure 3: Step-by-step OFDPS improvements Continued on next page Contamination and marginal contact pressure Line CFM Proprietary Information subject to restrictions on the cover cfm56 Fleet Highlites February 2016 8 Continued from previous page Service Bulletins Cat 7 SB 79-0037 issued on December 2, 2015, introducing the full upgraded OFDPS (4 steps) with the following part number change: Old PN: VIN QA07656 ISS1 (340-400-402-0) New PN: VIN QA07656 ISS2 (340-400-403-0) Cat 5 SB 79-0035, described in December 2014 cfm56 Fleet Highlites article (14-12-7900-02), addressing a limited production window, will subsequently be cancelled (2016).