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20000111005429A

Accident · Substantial damage
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FAA accident report · Beech F33A · Mobile, AZ · January 11, 2000

FAA Aviation Safety Information Portal

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Date
January 11, 2000 · 07:25 local
Place
Mobile, AZ
Airport
Mobile Airport
Phase of flight
Forced/Precautionary Landing
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N1565A
NTSB investigation
NTSBLAX00LA074
Reported as
Beech F33A
Reported engine
Continental IO520BB
People aboard
3
Fatal injuries
0
Pilot’s flight hours
5,800 total1,000 in this make and model200 in the last 90 days
N1565ARegistration cancelled Feb 28, 2011 · Beech F33AS/N CE-1331 · Built 1989Airframe modelBeech F33AEngine modelContinental IO-520 seriesReciprocating

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.

(-23) Aircraft experienced sudden loss of power while climbing out from touch and go landing at Mobile Airport (1A20). Aircraft was successfully landed in open desert approximately 3 n.m. s.e. of airport. (.4) during climb out the engine began shaking, rattling, and losing power. The flight instructor took the controls and performed an emergency off-airport landing. While on rollout the aircraft sustained substantial damage to the leading edges and lower surfaces of both wings. The engine had been previously inspected iaw tcm 99-3, which required the removal of the no. 1 and 3 cylinders. Upon reassembly of the cylinders, it was necessary to reinstall three snap rings on the crankshaft counterweights at the no. 2 and 5 cheeks. An inspection of he no. 5 cheek revealed that these three snap rings were not fully seated. The signatures on the crankshaft and counterweight were consistent with a counterweight striking the crankshaft. This can only happen if the counterweight pin is not in place. A revision to tcm mandatory service bulletin 99-3C, published on July 27, 1999, now requires that the gap between the snap ring ears be measured to insure that they are properl y seated during reassembly.

As the FAA filed it

(-23) AIRCRAFT EXPERIENCED SUDDEN LOSS OF POWER WHILE CLIMBING OUT FROM TOUCH AND GO LANDING AT MOBILE AIRPORT (1A20). AIRCRAFT WAS SUCCESSFULLY LANDED IN OPEN DESERT APPROXIMATELY 3 N.M. S.E. OF AIRPORT. (.4) DURING CLIMB OUT THE ENGINE BEGAN SHAKING, RATTLING, AND LOSING POWER. THE FLIGHT INSTRUCTOR TOOK THE CONTROLS AND PERFORMED AN EMERGENCY OFF-AIRPORT LANDING. WHILE ON ROLLOUT THE AIRCRAFT SUSTAINED SUBSTANTIAL DAMAGE TO THE LEADING EDGES AND LOWER SURFACES OF BOTH WINGS. THE ENGINE HAD BEEN PREVIOUSLY INSPECTED IAW TCM 99-3, WHICH REQUIRED THE REMOVAL OF THE NO. 1 AND 3 CYLINDERS. UPON REASSEMBLY OF THE CYLINDERS, IT WAS NECESSARY TO REINSTALL THREE SNAP RINGS ON THE CRANKSHAFT COUNTERWEIGHTS AT THE NO. 2 AND 5 CHEEKS. AN INSPECTION OF HE NO. 5 CHEEK REVEALED THAT THESE THREE SNAP RINGS WERE NOT FULLY SEATED. THE SIGNATURES ON THE CRANKSHAFT AND COUNTERWEIGHT WERE CONSISTENT WITH A COUNTERWEIGHT STRIKING THE CRANKSHAFT. THIS CAN ONLY HAPPEN IF THE COUNTERWEIGHT PIN IS NOT IN PLACE. A REVISION TO TCM MANDATORY SERVICE BULLETIN 99-3C, PUBLISHED ON JULY 27, 1999, NOW REQUIRES THAT THE GAP BETWEEN THE SNAP RING EARS BE MEASURED TO INSURE THAT THEY ARE PROPERL Y SEATED DURING REASSEMBLY.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB LAX00LA074Accident · No injuriesLimited investigationFinal reportMobile, AZthe manufacturer representative's improper reinstallation of the crankshaft counterweight snap rings which subsequently separated, allowing the crankshaft counterweight to contact the crankshaft resulting in a total power loss of engine power.Jan 11, 2000 · Substantial damage

Other reports on N1565A · 1

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

Accident 20100605037779ACruise/Level Flight · Marana, AZN1565A was conducting a cross country flight from phx goodyear airport to Marana Northwest Regional Airport (avq). Various private pilot certification activities were conducted during the flight, including diversions to alternate airports. [privacy data…Jun 5, 2010 · Substantial damage