MIA91LA003

NTSB accident investigation · Beech C-90 · Tampa, FL · October 3, 1990

Accident · No injuriesLimited investigationFinal report
Date
October 2, 1990, 23:59 local (Oct 3, 1990, 03:59 UTC)
Place
Tampa, FL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7128JBeech C-90
Weather
Visual (VMC) · Night/dark
Status
Completed · report October 2, 1992
Report
Approved by Office Director
FAA report
19901002045819A
Case key
32778

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

The lack of lubrication by maintenance personnel of the nose landing gear actuator.

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.

Main gear collapsedLanding - roll
Maintenance,lubrication - not performedOther maintenance personnelCause
Landing gear,nose gear - seized
Gear extension - not possiblePilot in command

Analysis

During flt before accident flt, the landing gear malfunctioned. Emergency gear extension was accomplished but required excessive force. Maintenance personnel lubricated the nose gear retract chain & adjusted the gear down light indicator switch. The airplane was flown with no discrepancies noted. The accident flt was uneventful until after lowering the landing gear selector handle, the gear did not fully extend. The emergency method was unsuccessful. The main gear collapsed during the landing roll. Exam of the landing gear system revealed that the nose gear actuator was seized due to lack of lubrication. The acft logbooks indicate that all gear actuators were replaced on 8-23-86. There were no further entries indicating that they were lubricated. According to the maint manual, the actuators should be removed for lubrication every 1,000 cycles of operation or 30 mos., whichever occurs first. The acft accumulated 3,154 cycles since replacement of the actuators.

Aircraft

Registration
N7128J
Reported as
Beech C-90
Category
Airplane
Serial number
LJ619
Airframe hours
13,032
Engine
P&W PT6A-20, 550 horsepower, turbo prop
Damage
Substantial damage
Flight
Ferry · Part 91
Registered owner
Dodson Aviation, Inc.
Last inspection
Continuous airworthiness · June 19, 1990 · 7 hours before
Departed
OJC · Olathe, KS
Flight plan
IFR
Airport
TPA · Tampa Int'L, runway 9, 6,998 × 150 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
45
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
13,338 total · 900 in this make and model · 12,935 as pilot in command · 46 in the last 90 days

Weather

Conditions
Visual (VMC) · Night/dark
Wind
90° at 7 knots
Visibility
12 statute miles
Lowest ceiling
None
Temperature
-0 °F, dew point -0 °F
Observed at
TPA

FAA reports on this event · 1

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