LAX91LA328

NTSB accident investigation · Beech 76 · Sacramento, CA · July 24, 1991

Accident · No injuriesLimited investigationFinal report
Date
July 24, 1991, 12:20 local (19:20 UTC)
Place
Sacramento, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N6045MBeech 76
Weather
Visual (VMC) · Day
Status
Completed · report April 8, 1993
Report
Approved by Office Director
FAA report
19910724029749A
Case key
27304

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

A fatigue failure of the landing gear strut due to an inadequate design by the manufacturer. Contributing to the accident was maintenance personnel not having completed an inspection of the gear strut, in accordance with the manufacturer's service bulletin.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Airframe/component/system failure/malfunctionLanding - roll
Landing gear,main gear spring - fatigueCause
Acft/equip,inadequate aircraft componentManufacturerCause
Maintenance,service bulletin/letter - not performedCompany maintenance personnelFactor
Main gear collapsedLanding - roll
In flight collision with terrain/waterLanding - roll

Analysis

The certificated airline pilot/flight instructor, the pilot-in-command, was demonstrating a single engine landing to a certificated private pilot/dual instructional student. During the landing roll, the airplane began to drift to the right. The PIC attempted to correct the drift by increasing the right engine power and applying left rudder. The airplane right wing began to settle to the ground and the pilot shut down both engines. The airplane received damage to the right gear flaps and propeller. An inspection revealed that the right gear strut was broken at an inspection hole provided by the manufacturer. The gear strut was the subject of a manufacturer's service bulletin and subsequent FAA airworthiness directive that required an inspection for cracks. Maintenance personnel had received the service bulletin but had not scheduled an inspection.

Aircraft

Registration
N6045M
Reported as
Beech 76
Category
Airplane
Serial number
ME184
Airframe hours
2,384
Engine
Lycoming O-360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Altair Aviation Corp.
Registered owner
David Justice & Assoc. & Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 26, 1991 · 80 hours before
Departed
2Q3 · Davis, CA
Flight plan
IFR
Airport
SAC · Sacramento Executive, runway 2, 5,503 × 150 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
45
Certificates
Airline transport, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
9,200 total · 2,000 in this make and model · 6,750 as pilot in command · 112 in the last 90 days · 51 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 9 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 59 °F
Altimeter
29.00 inHg
Observed at
SAC, 1 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.