 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Pilot reports that upon cranking the right engine for start on a piper PA23 aztec; the left main gear collapsed; followed by the right main gear collapsing when mechanics had lifted the left wing. After mechanics raised the right wing; the nose gear started to collapse.
| Attributes | |
| ACN | 1231974 |
| Time | |
| Date | 201501 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | PA-23-250 Aztec |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Parked |
| Route In Use | Direct |
| Flight Plan | None |
| Component | |
| Aircraft Component | Gear Extend/Retract Mechanism |
| Person 1 | |
| Function | Captain Pilot Flying Single Pilot |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 82 Flight Crew Total 2608 Flight Crew Type 571 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Ground Event / Encounter Ground Strike - Aircraft |
Narrative:
Was to depart VFR on a PA23-250 aztec late afternoon. Boarded with two passengers and one crew (myself). Completed the safety briefings and then the pre-start checks. Upon cranking the right engine for start the left main gear collapse. When mechanics arrived and lifted the left wing up and placed it on a jack; the right gear then collapsed. After raising the right wing the nose gear started to retract; but was saved in time by tying the tail down. It is suspected that the anti-retraction valve or some valve inside the main hydraulic housing may be at fault.
Original NASA ASRS Text
Title: Pilot reports that upon cranking the Right Engine for start on a Piper PA23 Aztec; the Left Main Gear collapsed; followed by the Right Main Gear collapsing when mechanics had lifted the left wing. After mechanics raised the right wing; the Nose Gear started to collapse.
Narrative: Was to depart VFR on a PA23-250 AZTEC late afternoon. Boarded with two passengers and one crew (myself). Completed the safety briefings and then the pre-start checks. Upon cranking the right engine for start the left main gear collapse. When mechanics arrived and lifted the left wing up and placed it on a jack; the right gear then collapsed. After raising the right wing the nose gear started to retract; but was saved in time by tying the tail down. It is suspected that the anti-retraction valve or some valve inside the main hydraulic housing may be at fault.
Data retrieved from NASA's ASRS site 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.