CEN11LA254

NTSB accident investigation · North American B25 · Encinal, TX · March 26, 2011

Accident · No injuriesLimited investigationFinal report
Date
March 26, 2011, 13:00 local (18:00 UTC)
Place
Encinal, TX
Injuries
9 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N747AFNorth American B25
Defining event
Takeoff: Landing gear collapse
Weather
Visual (VMC) · Day
Status
Completed · report February 12, 2013
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA San Antonio FSDO
Case key
78717

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 co-pilot’s premature retraction of the landing gear during takeoff, which resulted in a gear collapse and impact with the runway surface.

Findings · 3

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 systemAircraft › Aircraft systems · Incorrect use/operationNorth American B-25J: 1 caseAll aircraft: 113 casesProbable cause
Action: incorrect action performancePersonnel issues › Action/decision · CopilotNorth American B-25J: 1 caseAll aircraft: 1,386 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

During the takeoff roll, at an airspeed of about 60 knots, the pilot rotated the nose of the airplane to the standard angle for takeoff. The co-pilot stated that during the takeoff roll, he thought that the pilot had called for the landing gear to be retracted, so he reached down and moved the landing gear handle. Shortly thereafter the landing gear began to collapse and both propellers and the fuselage impacted the runway surface. The pilot stated that there were no mechanical anomalies with the airplane prior to the accident and the co-pilot said that he prematurely raised the gear handle.

Factual narrative

On March 26, 2011, about 1300 central daylight time, a North American B-25J, multi-engine airplane, N747AF, was substantially damaged when the landing gear collapsed during take-off at El Jardin Ranch Airport (XA66), Encinal, Texas. A postimpact fire ensued. The airplane was owned and operated by Lewis Fighter Fleet LLC., San Antonio, Texas. Visual meteorological conditions prevailed and a flight plan had not been filed for the 14 Code of Federal Regulations Part 91 personal flight. The pilot, co-pilot, flight mechanic, and six passengers were not injured. The local flight was originating at the time of the accident. During the takeoff roll, at an airspeed of about 60 knots, the pilot rotated the nose of the airplane to the standard angle for takeoff. The co-pilot stated that he thought that the pilot had called for the landing gear to be retracted at that time so he reached down and selected the landing gear handle to the up position. Shortly thereafter the landing gear began to collapse and the airplane settled onto the runway and slid to a stop. Both propellers impacted the runway surface, resulting in damage to both engines and propellers. The impact and postimpact fire resulted in substantial damage to the fuselage. The pilot stated that there were no mechanical anomalies with the airplane prior to the accident and the co-pilot said he prematurely raised the gear handle.

Aircraft

Registration
N747AF
Reported as
North American B25 (J)
Category
Airplane
Serial number
44-30456
Airframe hours
7,460
Engines
Wright R-2600-35, 1,700 horsepower, reciprocatingWright R-2600-35, 1,700 horsepower, reciprocating
Damage
Substantial damage
Fire
On-Ground
Flight
Personal · Part 91
Operator
Lewis Fighter Fleet LLC
Registered owner
Lewis Fighter Fleet LLC
Airworthiness certificate
Special, Limited (Special)
Last inspection
AAIP · January 7, 2011
Departed
XA66 · Encinal, TX
Destination
XA66 · Encinal, TX
Airport
XA66 · El Jardin Ranch Airport, runway 12, 6,270 × 80 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
54
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine sea, Single-engine sea, Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
March 24, 2011
Seat
Left
Flight hours
5,700 total · 400 in this make and model
Role
Co-pilot
Age
64
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, With waivers/limitations
Last flight review
August 30, 2010
Seat
Right
Flight hours
5,596 total · 24 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 66 °F
Altimeter
29.70 inHg
Observed at
KCOT, 23 nm away

Docket · 4

The files NTSB released with the investigation on December 17, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 995 KB in all.