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An L1011 returned to the field with smoke in the cabin caused by pack temperature circuit breakers opened for maintenance and never reset.
| Attributes | |
| ACN | 401648 |
| Time | |
| Date | 199805 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | L-1011 Tri-Star All Series |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 401648 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
While deactivating an inoperative ram air exhaust valve actuator I pulled the circuit breakers listed in the maintenance manual deactivation procedure. I thought the breakers only controled the actuator. I did not know the breakers also controled the pack temperature controller. I overlooked the item in the maintenance manual that stated to reset the breakers. I did not reset the circuit breakers. The aircraft departed and had an air turn back with smoke in the cabin.
Original NASA ASRS Text
Title: AN L1011 RETURNED TO THE FIELD WITH SMOKE IN THE CABIN CAUSED BY PACK TEMP CIRCUIT BREAKERS OPENED FOR MAINT AND NEVER RESET.
Narrative: WHILE DEACTIVATING AN INOP RAM AIR EXHAUST VALVE ACTUATOR I PULLED THE CIRCUIT BREAKERS LISTED IN THE MAINT MANUAL DEACTIVATION PROC. I THOUGHT THE BREAKERS ONLY CTLED THE ACTUATOR. I DID NOT KNOW THE BREAKERS ALSO CTLED THE PACK TEMP CTLR. I OVERLOOKED THE ITEM IN THE MAINT MANUAL THAT STATED TO RESET THE BREAKERS. I DID NOT RESET THE CIRCUIT BREAKERS. THE ACFT DEPARTED AND HAD AN AIR TURN BACK WITH SMOKE IN THE CABIN.
Data retrieved from NASA's ASRS site as of July 2007 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.