 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B737-300 was moved between gates during a very cold overnight layover and cockpit air conditioning/heating; electrical and hydraulic systems were configured in an unsafe manner by ground personnel. Equipment damage and human injury were possible.
| Attributes | |
| ACN | 819360 |
| Time | |
| Date | 200901 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZZ.Airport |
| State Reference | FO |
| Aircraft 1 | |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Experience | Flight Crew Last 90 Days 90 Flight Crew Total 13000 Flight Crew Type 2200 |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Deviation - Procedural FAR |
Narrative:
Arrived at aircraft after passengers and flight attendants boarded due to crew rest issues. Found that aircraft had been moved from gate X; we had parked the previous evening at gate Y. Cabin temperature was over 100 degrees F; outside air temperature 15 degrees F. Found the following incorrect switch positions and indications upon boarding: APU running with no fuel pump switches on. Both air conditioning packs selected on. Both temperature selectors in automatic; full (maximum) heat selected. Left pack trip master caution. All hydraulic pumps on; including 'a' system electric. I was unable to determine who set up the flight deck this way; other than being told by gate agent that it was a 'contract' company. We then reset all switches to proper positions; pack trip was dealt with; cabin temperature brought back under control; fire test on engines and APU completed; and then we completed all normal pre-departure duties. We are fortunate that this did not end badly.
Original NASA ASRS Text
Title: A B737-300 was moved between gates during a very cold overnight layover and cockpit air conditioning/heating; electrical and hydraulic systems were configured in an unsafe manner by ground personnel. Equipment damage and human injury were possible.
Narrative: Arrived at aircraft after passengers and Flight Attendants boarded due to crew rest issues. Found that aircraft had been moved from Gate X; we had parked the previous evening at Gate Y. Cabin temperature was over 100 degrees F; outside air temperature 15 degrees F. Found the following incorrect switch positions and indications upon boarding: APU running with no fuel pump switches on. Both air conditioning packs selected on. Both temperature selectors in automatic; full (maximum) heat selected. Left Pack Trip master Caution. All hydraulic pumps on; including 'A' system electric. I was unable to determine who set up the flight deck this way; other than being told by gate agent that it was a 'contract' company. We then reset all switches to proper positions; pack trip was dealt with; cabin temperature brought back under control; fire test on engines and APU completed; and then we completed all normal pre-departure duties. We are fortunate that this did not end badly.
Data retrieved from NASA's ASRS site as of April 2012 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.