37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 747325 |
Time | |
Date | 200707 |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | airport : zzz.airport |
State Reference | US |
Altitude | msl single value : 6000 |
Aircraft 1 | |
Controlling Facilities | tower : zzz.tower |
Operator | common carrier : air carrier |
Make Model Name | B737-300 |
Operating Under FAR Part | Part 121 |
Flight Phase | climbout : initial |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Experience | flight time last 90 days : 73 |
ASRS Report | 747325 |
Events | |
Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance |
Independent Detector | other flight crewa |
Resolutory Action | other |
Consequence | other |
Supplementary | |
Problem Areas | Aircraft Maintenance Human Performance |
Primary Problem | Maintenance Human Performance |
Narrative:
Airplane came in with write-up for pressure fluctuations (outflow value not consistent). Maintenance tried to get us to take airplane as is. I refused. Maintenance replaced outflow valve and pressurization controller. Ground checked ok by maintenance. At lift-off; both pilots felt a 'pop' and the cabin rate of climb shot to 3800 FPM. Both automatic and standby pressurization system failed. We leveled off at 9000 ft; called dispatch and maintenance but not able to recover system. We burned gas to land below maximum landing weight; and returned to the gate.
Original NASA ASRS Text
Title: A B737-300 LOST ALL PRESSURIZATION ON TKOF AFTER PREVIOUS MAINTENANCE ACTION REPLACED BOTH THE OUTFLOW VALVE AND PRESSURIZATION CONTROLLER.
Narrative: AIRPLANE CAME IN WITH WRITE-UP FOR PRESSURE FLUCTUATIONS (OUTFLOW VALUE NOT CONSISTENT). MAINT TRIED TO GET US TO TAKE AIRPLANE AS IS. I REFUSED. MAINT REPLACED OUTFLOW VALVE AND PRESSURIZATION CTLR. GND CHKED OK BY MAINT. AT LIFT-OFF; BOTH PLTS FELT A 'POP' AND THE CABIN RATE OF CLB SHOT TO 3800 FPM. BOTH AUTO AND STANDBY PRESSURIZATION SYS FAILED. WE LEVELED OFF AT 9000 FT; CALLED DISPATCH AND MAINT BUT NOT ABLE TO RECOVER SYS. WE BURNED GAS TO LAND BELOW MAX LNDG WT; AND RETURNED TO THE GATE.
Data retrieved from NASA's ASRS site as of January 2009 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.