WPR13LA189

NTSB accident investigation · Beech 95-C55 · Santa Monica, CA · April 12, 2013

Accident · No injuriesLimited investigationFinal report
Date
April 12, 2013, 13:35 local (20:35 UTC)
Place
Santa Monica, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N153NLBeech 95-C55
Defining event
Landing-landing roll: Flight control sys malf/fail
Weather
Visual (VMC) · Day
Status
Completed · report September 30, 2014
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20130412005349A
Case key
86640

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 left main wheel locking up during the landing roll, which resulted in the deflation of the tire, the left main landing gear collapse, and the subsequent loss of control during the runway exit.

Findings · 1

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Landing gear system: brakeAircraft › Aircraft systems · MalfunctionBeech 95-C55: 1 caseAll aircraft: 297 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

After touchdown and deceleration, as the airplane began to exit the runway, its left brake locked and the tire deflated. Shortly thereafter, the left main landing gear collapsed, and the airplane spun about the left wing. A postaccident examination revealed that the left brake appeared normal and released properly, and the left main gear turned normally while the airplane was towed. However, the left main tire had a flat spot and had been worn completely through the tread and plies, indicative of the wheel being locked during the landing roll. The left main tire subsequently deflated and the left main landing gear collapsed, which resulted in the airplane veering sharply left during the turn to exit the runway.

Factual narrative

On April 12, 2013, about 1335 Pacific daylight time, a Beechcraft 95-C55 Baron, N153NL, was on the landing roll when the left main landing gear collapsed at the Santa Monica Municipal Airport, Santa Monica, California. Schuster Aviation LLC, owned and operated the airplane under the provisions of 14 Code of Federal Regulations (CFR) Part 91. The private pilot and passenger were not injured; the airplane sustained substantial damage. The pilot departed Montgomery Field Airport, San Diego, California, about 1245, with a planned destination of Santa Monica. Visual meteorological conditions prevailed, and no flight plan had been filed.The pilot stated that after he landed on runway 21, the airplane's ground speed decelerated to about 15 to 25 knots. As he prepared to exit the runway, the airplane's left brake locked and the tire deflated. Shortly thereafter, the left main landing gear collapsed and the airplane spun about the left wing. The pilot opined that the landing gear collapsed as a result of the tire's debris interfering with the system. The airplane sustained substantial damage to the left wing. According to a Federal Aviation Administration (FAA) inspector, an Air Traffic Controller observed the airplane during the landing rollout. He stated that white smoke was emitting from the left main landing gear and when the airplane was turning off the runway, the left gear collapsed and the wing dipped to the ground. The airplane came to rest in the safety area near the end of runway 21. Following the accident, the airplane was manually lifted on jacks and a temporary brace was installed on the left main retract assembly to enable the airplane to be towed. According to the FAA inspector, the left main tire had a flat spot and was worn completely through the tread and plies, indicative of a locked wheel condition during landing/rollout. A post accident examination revealed that the left brake appeared normal and released properly, and the left main turned normally while the airplane was towed. He further stated that based on the observed physical and photographic evidence, the left main tire was locked up during the landing/braking/rollout resulting in the airplane veering sharply left during the rollout. The inspector opined that the left main gear collapsed likely due to the side loads from the sharp left turn at speed.

Aircraft

Registration
N153NL
Reported as
Beech 95-C55
Category
Airplane
Serial number
TE-5
Airframe hours
5,565
Engines
Cont Motor IO 520 SERIES, 285 horsepower, reciprocatingCont Motor IO 520 SERIES, 285 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 1, 2013 · 60 hours before
Departed
MYF · San Diego, CA
Destination
SMO · Santa Monica, CA
Airport
SMO · Santa Monica Municipal Airport, runway 21, 4,973 × 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
44
Injuries
None
Certificate
Private
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Last flight review
December 18, 2012
Seat
Left
Flight hours
1,431 total · 207 in this make and model · 1,282 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 10 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
72 °F
Altimeter
29.84 inHg
Observed at
SMO

Docket · 2

The files NTSB released with the investigation on September 15, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.9 MB 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.