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A line mechanic reports an engine reverser on an A320 aircraft failed to deploy upon landing after he had completed a bleed valve installation. Mechanic also noted that a lack of adequate shift turnover information and failure by the previous shift to make a write-up for the locked-out reverser; contributed to the event.
| Attributes | |
| ACN | 995865 |
| Time | |
| Date | 201202 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Reverser Lockout |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural FAR Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy |
Narrative:
One night; february 2012; I; mechanic X; and mechanic Y continued to remove the bleed valve off of an A320 aircraft for an engine boroscope from where swing shift had left off. After the engine shop had finished with the boroscope; we both proceeded to reinstall the bleed valve per the maintenance manual supplement 72-037. After installation; I ran the engine for a leak check. Then we towed the plane down to the gate. Apparently when the plane was approaching the runway in ZZZ1; the reverser would not deploy upon landing. The mechanics in ZZZ1 had found that the reverser was still locked-out. That's when I got a call from supervisor X on my days-off and he had told me what they had found in ZZZ1. I told supervisor X that there was no write-up that the reverser had been locked-out per the general maintenance manual (gmm). So then I called up my partner; mechanic Y; and he told me that swing shift [maintenance] had left a note up in the cockpit taped to fadec; saying the reverser had been locked-out; but [he] did not bring it to my attention at the time. He had told me this three days later; also on his days-off.
Original NASA ASRS Text
Title: A Line Mechanic reports an engine Reverser on an A320 aircraft failed to deploy upon landing after he had completed a bleed valve installation. Mechanic also noted that a lack of adequate shift turnover information and failure by the previous shift to make a write-up for the Locked-out reverser; contributed to the event.
Narrative: One night; February 2012; I; Mechanic X; and Mechanic Y continued to remove the Bleed Valve off of an A320 aircraft for an engine boroscope from where swing shift had left off. After the Engine Shop had finished with the boroscope; we both proceeded to reinstall the bleed valve per the Maintenance Manual Supplement 72-037. After installation; I ran the engine for a leak check. Then we towed the plane down to the gate. Apparently when the plane was approaching the runway in ZZZ1; the reverser would not deploy upon landing. The mechanics in ZZZ1 had found that the reverser was still locked-out. That's when I got a call from Supervisor X on my Days-off and he had told me what they had found in ZZZ1. I told Supervisor X that there was no write-up that the reverser had been locked-out per the General Maintenance Manual (GMM). So then I called up my partner; Mechanic Y; and he told me that Swing Shift [Maintenance] had left a note up in the cockpit taped to FADEC; saying the reverser had been locked-out; but [he] did not bring it to my attention at the time. He had told me this three days later; also on his Days-off.
Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.