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

March 16, 2013 · Piper PA-38-112 · N99DM

Byron, CA

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
March 16, 2013
Injury Outcomes
No injuries (1 uninjured)
Location
Byron, CA
Aircraft
Piper PA-38-112 (1978)
Tail Number
N99DM
Operator
Leandro a Rivera
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR13LA171

During the initial climb after takeoff, the airplane's engine began to sputter, and it subsequently lost total power. The pilot made a forced landing in a grass field, and, during the landing roll, the right wing and fuselage were substantially damaged. Postaccident examination revealed that fuel was present in both wing tanks, and no evidence of fuel contamination was found. An attempt to run the engine was unsuccessful because of discrepancies with the airplane's electrical system, gascolator, and the engine's starter. However, none of these discrepancies would have resulted in a loss of engine power. The cause of the engine failure could not be determined.

NTSB Probable Cause

A loss of engine power during initial climb for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.

Full Narrative

On March 16, 2013, at 1330 Pacific daylight time, a Piper PA-38-112, N99DM, was substantially damaged during a forced landing following a loss of engine power on takeoff initial climb near Byron, California. The private pilot, the sole occupant, was not injured. The pilot/owner was operating the airplane under the provisions of 14 Code of Federal Regulations Part 91. No flight plan had been filed for the cross-country flight to Livermore, California. The flight was originating from the Byron Airport at the time of the accident, and visual meteorological conditions prevailed. The pilot reported that he had just taken off, and the end of the runway was passing underneath him when the airplane's engine began to sputter and then lost power. He declared an emergency on the radio, set up a glide, changed fuel tanks, turned on the electric fuel boost pump, and flared for landing. He landed in a field immediately next to airport property. During the landing roll in the grass field, the right main landing gear encountered several gopher holes, bending the right wing and right side of the fuselage. A Federal Aviation Administration (FAA) inspector examined the airplane at the accident site, and he reported that 5 and 6 gallons of fuel were drained from the left and right wing tanks, respectively. A visual examination of the fuel revealed no indication of contamination. The wings were removed from the airplane, and the airplane was transported to a salvage yard. On April 16, 2013, the Federal Aviation Administration (FAA) inspector attempted to perform an engine run at the salvage yard. Difficulty was encountered in energizing the airplane's electrical system, and therefore, the airplane's electric fuel boost pump could not be used to supply fuel to the engine. While manually priming the fuel system, a leak was found at the gascolator. The gascolator was disassembled, and a crack in the upper flange of the metal bowl extending around about a third of its circumference was found. The gascolator was bypassed in order to supply fuel directly to the carburetor. When a start was attempted, the starter was not capable of turning over the engine. No further examination was conducted.

Flight

Event TypeAccident
Event Time13:30 PDT
Nearest AirportByron Airport (1nm)
Runway23
Runway Length3000 ft
Runway Width75 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftPiper PA-38-112
Tail NumberN99DM
Aircraft CategoryAir
DamageSubstantial
OperatorLeandro a Rivera
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235 · Reciprocating · 112
Seats2

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 62 · Third Class · None

Conditions

ConditionsVMC
LightDaylight
Wind210° @ 14 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point70 F / 48
Altimeter30.04 inHg
Observation Time19:53
Weather SourceWFAC

Appendix: Source Data