LAX95IA011

NTSB incident investigation · Cessna 402 · Grand Canyon, AZ · October 18, 1994

Incident · No injuriesIncident investigationFinal report
Date
October 17, 1994, 17:42 local (Oct 18, 1994, 00:42 UTC)
Place
Grand Canyon, AZ
Injuries
9 uninjured
Damage
Minor damage
Phase of flight
Landing
Aircraft
N402SWCessna 402
Weather
Visual (VMC) · Day
Status
Completed · report October 13, 1995
Report
Approved by Office Director
FAA report
19941017035099I
Case key
28949

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

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Probable cause

the fracture and failure of the left main landing gear bellcrank which jammed the landing gear in the retracted position.

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.

Wheels up landingLanding - flare/touchdown
Landing gear,normal retraction/extension assembly - fracturedCause
Landing gear,main gear - jammedCause
Gear extension - not possiblePilot in command

Analysis

The aircraft landed gear up and veered off the runway. A bellcrank in the left main landing gear system was found fractured, jamming the landing gear in the up position after takeoff. The last maintenance inspection of the landing gear system was a 200-hour inspection accomplished about 71.1 flight hours before the incident.

Factual narrative

On October 17, 1994, at 1742 hours mountain standard time, a Cessna 402, N402SW, landed gear up and veered off runway 3 at the Grand Canyon Airport, Grand Canyon, Arizona. The airplane was being operated as a sightseeing flight under 14 CFR Part 135 when the incident occurred. The airplane sustained minor damage. The certificated commercial pilot and eight passengers were not injured. One passenger received minor injuries. The flight originated in Las Vegas, Nevada, at 1500 hours. Visual meteorological conditions prevailed and a company visual flight rules flight plan was filed.

According to Federal Aviation Administration (FAA) inspectors, a bellcrank in the left main landing gear system fractured, jamming the landing gear in the up position. After getting a gear not safe indication, the pilot orbited the airport about 90 minutes to burn fuel before landing. During the landing roll, the airplane veered left and came to rest about 50 feet east of runway 3 at midfield.

The last maintenance inspection of the landing gear system was a 200-hour inspection accomplished on September 20, 1994, about 71.1 flight hours before the accident. At the time of the inspection, there were no discrepancies noted with the bellcrank. An examination of the landing gear by the pilot during his preflight walk-around check of the airplane is a checklist item contained in the aircraft manual.

Review of Service Difficulty Reports (SDRs) for Cessna 402A airplanes revealed two previous left main landing gear malfunctions as a result of broken bellcranks. The submitters of the two SDRs both recommended increasing the inspection criteria of the bellcrank. As a result of this incident, Federal Aviation Administration inspectors revised the operator's maintenance program by requiring the landing gear system be inspected every 50 hours of aircraft operation.

Aircraft

Registration
N402SW
Reported as
Cessna 402
Category
Airplane
Serial number
402-0036
Airframe hours
7,917
Engine
Continental TSIO-520E, 300 horsepower, reciprocating
Damage
Minor damage
Flight
Part 135
Registered owner
King Airlines, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · September 20, 1994 · 71 hours before
Departed
L15 · Las Vegas, NV
Destination
GCN
Flight plan
VFR
Airport
GCN · Grand Canyon Nat'L Park, runway 3, 8,999 × 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
23
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
1,460 total · 640 in this make and model · 253 in the last 90 days · 65 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
50 statute miles
Lowest ceiling
None
Temperature
39 °F
Altimeter
30.00 inHg
Observed at
GCN

FAA reports on this event · 1

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