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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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| Attributes | |
| ACN | 837578 |
| Time | |
| Date | 200906 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Trinidad TB-20 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Landing |
| Route In Use | None |
| Flight Plan | None |
| Component | |
| Aircraft Component | Gear Extend/Retract Mechanism |
| Person 1 | |
| Function | Single Pilot |
| Qualification | Flight Crew Instrument Flight Crew Private |
| Experience | Flight Crew Last 90 Days 12 Flight Crew Total 1100 Flight Crew Type 150 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
On final approach into ZZZ after an uneventful 1.3 hour night flight; attempted to extend landing gear and saw only two gear-down indications instead of three. Recycled gear with same result. Informed tower; and asked to fly the pattern while attempting to troubleshoot. Verified all three indicators lamps ok (test button); and attempted several more cycles; plus performed manual extension procedure; with same result. Accepted tower's offer for a fly-by for visual inspection; but darkness prevented a good observation. A police helicopter was maneuvering nearby and offered to inspect the gear visually. I did not accept this offer; remembering an incident in 1991 in which a similar offer resulted in two aircraft destroyed and 7 fatalities. (NTSB identification: dca91ma031b). Requested emergency equipment be made available; and attempted landing; which was completed successfully. Taxied to tie-down; and completed paperwork with fire truck operator. This is the second time exactly this incident has taken place in this same aircraft; though the first time it was daylight. That time; the issue was identified as a lubrication problem and repaired locally. This time; my intent is to bring the plane to a manufacturer-approved service center to have the landing gear system rigorously inspected and repaired.
Original NASA ASRS Text
Title: A TB-20 Trinidad's landing gear failed to extend normal. The pilot declared an emergency and landed normally.
Narrative: On final approach into ZZZ after an uneventful 1.3 hour night flight; attempted to extend landing gear and saw only two gear-down indications instead of three. Recycled gear with same result. Informed tower; and asked to fly the pattern while attempting to troubleshoot. Verified all three indicators lamps OK (test button); and attempted several more cycles; plus performed manual extension procedure; with same result. Accepted tower's offer for a fly-by for visual inspection; but darkness prevented a good observation. A police helicopter was maneuvering nearby and offered to inspect the gear visually. I did NOT accept this offer; remembering an incident in 1991 in which a similar offer resulted in two aircraft destroyed and 7 fatalities. (NTSB Identification: DCA91MA031B). Requested emergency equipment be made available; and attempted landing; which was completed successfully. Taxied to tie-down; and completed paperwork with fire truck operator. This is the second time exactly this incident has taken place in this same aircraft; though the first time it was daylight. That time; the issue was identified as a lubrication problem and repaired locally. This time; my intent is to bring the plane to a manufacturer-approved service center to have the landing gear system rigorously inspected and repaired.
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.