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An aircraft maintenance technician (amt) reports an A300 aircraft returned to gate after aborting a takeoff roll due to an engine thrust reverser pressurized fault indication on their ECAM for #1 engine. Technician noted he had failed to remove an electrical connector from the directional pilot valve pressure switch on #1 engine that was a requirement to defer a high pressure bleed valve (hpbv) fault.
| Attributes | |
| ACN | 1121182 |
| Time | |
| Date | 201310 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Make Model Name | A300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Takeoff |
| Component | |
| Aircraft Component | Electrical Wiring & Connectors |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
An A300 aircraft arrived at the station with one pilot write-up: # 1 engine high pressure bleed valve (hpbv) faulted after takeoff from ZZZ1. Repeat write-up. MEL 36-11-03 requires manual lock-out of hp valve and associated thrust reverser deactivation. The final steps of thrust reverser deactivation; MEL 78-30-01-a include removing electrical connector from directional pilot valve pressure switch. This step had not been accomplished and on takeoff roll; crew was alerted of an associated thrust reverser pressurized fault on the ECAM and aircraft returned to gate. [This is a] one man station [and aircraft had a] short ground time. [Mechanic faced] routine distractions [and was] trying to avoid delay. [Mechanic should] take the time needed to accomplish each published step; self check each published step; avoid distractions [and if needed] take delay.
Original NASA ASRS Text
Title: An Aircraft Maintenance Technician (AMT) reports an A300 aircraft returned to gate after aborting a takeoff roll due to an engine thrust reverser pressurized fault indication on their ECAM for #1 Engine. Technician noted he had failed to remove an electrical connector from the directional pilot valve pressure switch on #1 Engine that was a requirement to defer a High Pressure Bleed Valve (HPBV) fault.
Narrative: An A300 aircraft arrived at the Station with one pilot write-up: # 1 Engine High Pressure Bleed Valve (HPBV) faulted after takeoff from ZZZ1. Repeat write-up. MEL 36-11-03 requires manual lock-out of HP Valve and associated thrust reverser deactivation. The final steps of thrust reverser deactivation; MEL 78-30-01-A include removing electrical connector from directional pilot valve pressure switch. This step had not been accomplished and on takeoff roll; crew was alerted of an associated thrust reverser pressurized fault on the ECAM and aircraft returned to gate. [This is a] one man station [and aircraft had a] short ground time. [Mechanic faced] routine distractions [and was] trying to avoid delay. [Mechanic should] take the time needed to accomplish each published step; self check each published step; avoid distractions [and if needed] take delay.
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.