CHI02LA210

NTSB accident investigation · Cessna 402B · St. Louis, MO · July 24, 2002

Accident · No injuriesLimited investigationFinal report
Date
July 23, 2002, 21:15 local (Jul 24, 2002, 02:15 UTC)
Place
St. Louis, MO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N22PBCessna 402B
Weather
Visual (VMC) · Day
Status
Completed · report April 18, 2003
Report
Approved by Office Director
Parties
FAA
FAA report
20020723027529A
Case key
55346

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

On this page

Probable cause

The landing gear collapsed for undetermined reasons.

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 collapsedTaxi - from landing
Reason for occurrence undeterminedCause

Analysis

The airplane's left main landing gear collapsed while taxiing after landing. The pilot reported he had 3 green lights and that the landing was normal. He taxied for about 2,000 feet and started a right turn onto a taxiway when the landing gear collapsed. An inspection of the accident site revealed that the distance between where the propeller had struck the runway and where the aircraft came to rest was approximately 120 ft. An examination of the landing gear revealed that the only visible damage to the left main landing gear system was a sheared AN25-38A bolt which attached the rod end of the bellcrank to the lower side brace, and the NAS464P4-26 bolt which attaches the upper portion of the bellcrank to the upper portion of the upper barrel. The aircraft inspection revealed the right main landing gear operated, but the left landing gear could not be operationally checked.

Factual narrative

On July 23, 2002, at 2115 central daylight time, a Cessna 402B, N22PB, piloted by an air transport pilot, sustained substantial damage when the left main landing gear collapsed while taxiing after landing at the Lambert - St. Louis International Airport (STL), St. Louis, Missouri. Visual meteorological conditions prevailed at the time of the accident. The flight was operating on an IFR flight plan under the provisions of 14 CFR Part 135. The pilot reported no injuries. The flight originated from the Columbia Regional Airport (COU), Columbia, Missouri at 2035.

The pilot reported, "After landing, I taxied down 30R when St. Louis Tower instructed me to exit on taxiway November to the cargo ramp on tower frequency...At a speed of a brisk walk, I arrived at taxiway November. I started my [right] turn onto November when the left main landing gear gave way. I then notified tower immediately. I commenced emergency shutdown and egressed from the airplane."

An inspector from the Federal Aviation Administration (FAA) viewed the site where the accident occurred. He reported, "I took photographs of the runway where the propeller had struck the runway and where the aircraft came to rest. This distance was approximately 120 ft."

The FAA inspector reported the pilot stated that "he had 3 green lights and the gear was down and locked," and that the landing and taxiing normal until the landing gear collapsed.

The FAA inspector examined the landing gear. He reported that the only visible damage to the left main landing gear system "appeared to be a sheared AN25-38A bolt which attached the rod end of the bellcrank to the Lower Side Brace, and the NAS464P4-26 bolt which attaches the upper portion of the bellcrank to the upper portion of the upper barrel. This bellcank is what keeps the side braces locked and over center." He reported that the right hand main landing gear was operated and it "appeared to be within rigging limits for downlock spring tension and freefall checks." He reported, "The Landing Gear indicating lights where checked, which appeared to function normal." The left landing gear was not operationally checked.

Aircraft

Registration
N22PB
Reported as
Cessna 402B
Category
Airplane
Serial number
402B0243
Airframe hours
9,600
Engine
Continental TSIO 520 E8, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Registered owner
Corporate Aircraft Resources Inc
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · July 1, 2002 · 31 hours before
Departed
COU · Columbia, MO
Destination
STL · St. Louis, MO
Flight plan
Unknown
Airport
STL · Lambert-St Louis Intl, runway 30R, 9,003 × 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
36
Injuries
None
Certificates
Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
2,668 total · 677 in this make and model · 2,207 as pilot in command · 113 in the last 90 days · 70 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 4 knots
Visibility
10 statute miles
Lowest ceiling
6,000 ft broken
Temperature
79 °F, dew point 72 °F
Altimeter
30.02 inHg
Observed at
STL

Docket · 1

The files NTSB released with the investigation on February 13, 2003, on NTSB’s docket system: statements, records, photos and specialists’ reports. 323 KB in all.

FAA reports on this event · 1

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