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Incident
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FAA incident report · Hnlypg HP-137 MK1 · Denver, CO · September 6, 1979

FAA Aviation Safety Information Portal

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Date
September 6, 1979 · 12:05 local
Place
Denver, CO
Airport
Stapleton International
Phase of flight
Descent
Operating rules
Air taxi and commuter (Part 135)
Aircraft
N12221
Reported as
Hnlypg HP137MK1
People aboard
13
Fatal injuries
0
Pilot’s flight hours
4,000 total1,500 in this make and model0 in the last 90 days
N12221Registration cancelled Sep 2, 1992 · Handley Page HP-137 MK1S/N 221Airframe modelHandley Page HP-137 MK1

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Gear and flaps extended manually after hydraulic failure. Hydraulic lines had rubbed together until failure.

As the FAA filed it

GEAR AND FLAPS EXTENDED MANUALLY AFTER HYDRAULIC FAILURE. HYDRAULIC LINES HAD RUBBED TOGETHER UNTIL FAILURE.

Other reports on N12221 · 4

Matched to the same aircraft by N-number and date.

Incident 19811209085429ITakeoff Ground Roll · Sheridan, WYPilot aborted takeoff after aircraft struck a deer on takeoff roll.Dec 9, 1981 · Minor damageIncident 19810127009819ITo Init Climb(1st Pwr Reduct) · Sheridan, WYNumber two engine shutdown after takeoff. Fuel/hydraulic shutoff had vibrated to off position. Saftied handle open.Jan 27, 1981 · Minor damageIncident 19800309024269IGround Taxi, Other Airplane · Sheridan, WYFast taxi to test brake installation. Hit standing water. One engine falmed out. Airplane off runway in deep mudMar 9, 1980 · Substantial damageIncident 19791207048099IFcd/Prec Ldg From Cruise · Laramie, WYSump light lit followed by engine failure. Front compressor bearing failed.Dec 7, 1979