Premium research interface

The modern interface for aviation safety intelligence.

Search investigations, review source evidence, monitor watched reports, and trace long-term patterns from one calm, data-first workspace.

63k+
Reports indexed
1940-2026
Coverage
Recent
Last data refresh
Featured Report

Loading…

Loading featured report…

Loading…
Open Report

Safety trends by operating rule

Track fatal and non-fatal accident patterns across Part 91, Part 135, and Part 121 operations.

Loading trend charts…

Browse the aviation graph

Move quickly by aircraft, airport, operator, and time with indexes built for research, not wandering.

Last Data Update

By Decade

By Month

Aircraft Manufacturer

More manufacturers

Airports

More airports

Operators

More operators

About

Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

The goal is practical safety education: make it faster to find relevant investigations, compare similar events, review factual records, and understand the evidence behind probable-cause and preliminary reports.

The investigative work and source records belong to the National Transportation Safety Board and the published investigation record. This site is not affiliated with or endorsed by the NTSB.

FAQs

NTSB Report

November 14, 2007 · Beech A36 · N435M

El Centro, CA

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
November 14, 2007
Injury Outcomes
No injuries (3 uninjured)
Location
El Centro, CA
Aircraft
Beech A36
Tail Number
N435M
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA08LA033

During the initial climb through 5,500 feet, the engine had a total loss of power. The pilot subsequently landed in an alfalfa field, during which the nose gear collapsed, and both wings sustained substantial damage. A postaccident examination of the engine revealed that the #2 through bolts and deck studs were loose, allowing the #2 bearing half to shift and cover the oil transfer tubes on the bearing support. This sequence resulted in the #2 main bearing failure due to oil starvation, and subsequent separation of the #2 connecting rod, which resulted in the loss of engine power. The airplane's #2 cylinder had been replaced 24 hours prior to the loss of engine power.

NTSB Probable Cause

The failure of maintenance personnel to properly secure the #2 cylinder through bolts. A contributing factor was the lack of suitable terrain for landing.

Full Narrative

On November 14, 2007, about 1550 Pacific standard time, a Beech A36, N435M, sustained substantial damage following a forced landing as result of a loss of engine power while climbing to cruise altitude near El Centro, California. The certificated private pilot and his two passengers were not injured. Visual meteorological conditions prevailed for the personal cross-country flight, which was operated in accordance with 14 CFR Part 91, and a flight plan was not filed. The flight departed the Calexico Airport (CXL), Calexico, California, about 1540, and was destined for the Whiteman Airport (WHP), Los Angeles, California. The pilot reported in a written statement that about 5 minutes after departing CXL and climbing through 5,500 feet mean sea level, the [engine] temperature began to increase, followed by "... the engine making a loud noise and we noticed oil on the windshield. That is when the engine quit." The pilot stated that after determining that he could not make the nearest airport, he elected to land in an alfalfa field. The pilot reported that after touching down and rolling out the airplane's nose landing gear collapsed. The airplane came to rest in an upright position and there was no fire. A Federal Aviation Administration airworthiness inspector, who traveled to the accident site, reported that both wings had sustained substantial damage. It was also reported by a licensed FAA airframe and powerplant mechanic that the engine's number 2 cylinder had failed. A post-accident examination of the engine revealed that the break-away torque of the #2 cylinder through bolts and deck studs were found loose. It was also observed that the bolts on the 7th studs were found loose and were not installed with the conical seated nuts. Additionally, the right side #2 main bearing half was damaged and had shifted aft approximately 3/8th of an inch, covering the oil transfer tubes on the bearing support. It was also observed that the #2 connecting rod had separated from the crankshaft and exhibited thermal and impact damage. The #2 connecting rod journal exhibited thermal damage and displaced material. A review of maintenance records indicated that the airplane underwent its most recent annual inspection on August 3, 2007, at a tach time of 749.5 hours. On October 20, 2007, maintenance records revealed that the airplane's #2 cylinder was replaced due to low compression at a tach time of 808.6 hours. The pilot reported having flown the airplane 24 hours since the #2 cylinder had been changed.

Flight

Event TypeAccident
Event Time15:50 PST
Nearest Airport0nm
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftBeech A36
Tail NumberN435M
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-550 · Reciprocating · 300
Seats4

People & Injuries

Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 46 · Third Class · None

Conditions

ConditionsVMC
LightDaylight
Wind310° @ 4 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point37 C
Altimeter29.88 inHg
Observation Time23:53
Weather SourceWFAC

Appendix: Source Data