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An md-83 on a maintenance test flight experienced a loss of pressurization and a failed antiskid system.
| Attributes | |
| ACN | 948564 |
| Time | |
| Date | 201105 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | MD-83 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Pressurization System |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Check Pilot Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
We were performing maintenance directed pressurization tests when the auto controller 1 and 2 failed. Soon after; the cabin altitude rose rapidly and we started a descent. Cabin altitude eventually got to around 25;000 ft. We descended with our oxygen masks on; coordinated with ATC; and performed applicable checklists; while heading back to our origin airport. On approach we put the gear down and received inboard/outboard left and right anti-skid failure. We communicated this to ATC and were granted the longest runway. We performed all applicable normal and abnormal checklists during this process. Landing was uneventful. Upon clearing the runway; we stopped the aircraft and coordinated for the fire trucks to perform a visual inspection. All looked good to them and we had normal indications in the flight deck; then we taxied to the ramp for shutdown.for this test flight; we had maintenance in the jumpseat. Having him there was extremely helpful for our abnormal situation. We were able to get input from him and delegate some tasks. I recommend having maintenance onboard for test flights.
Original NASA ASRS Text
Title: An MD-83 on a maintenance test flight experienced a loss of pressurization and a failed antiskid system.
Narrative: We were performing maintenance directed pressurization tests when the auto controller 1 and 2 failed. Soon after; the cabin altitude rose rapidly and we started a descent. Cabin altitude eventually got to around 25;000 FT. We descended with our Oxygen Masks on; coordinated with ATC; and performed applicable checklists; while heading back to our origin airport. On approach we put the gear down and received inboard/outboard left and right anti-skid failure. We communicated this to ATC and were granted the longest runway. We performed all applicable normal and abnormal checklists during this process. Landing was uneventful. Upon clearing the runway; we stopped the aircraft and coordinated for the fire trucks to perform a visual inspection. All looked good to them and we had normal indications in the flight deck; then we taxied to the ramp for shutdown.For this test flight; we had Maintenance in the jumpseat. Having him there was extremely helpful for our abnormal situation. We were able to get input from him and delegate some tasks. I recommend having Maintenance onboard for test flights.
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.