MIA87IA256

NTSB incident investigation · Gates Learjet 36A · Tyndall Afb, FL · September 21, 1987

Incident · No injuriesIncident investigationFinal report
Date
September 21, 1987, 16:02 local (21:02 UTC)
Place
Tyndall Afb, FL
Injuries
3 uninjured
Damage
Minor damage
Phase of flight
Takeoff
Aircraft
N900MDGates Learjet 36A
Weather
Visual (VMC) · Day
Status
Completed · report January 11, 1989
Report
Approved by Office Director
Case key
31804

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

On this page

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.

Airframe/component/system failure/malfunctionTakeoff - roll/run
Landing gear,wheel - failure,partialCause
Landing gear,normal brake system - failure,total
On ground/water collision with objectTakeoff - aborted
Object - airport facility
OverrunTakeoff - aborted

Analysis

The captain aborted the takeoff at 124 KTS after hearing an explosive sound, feeling the aircraft swerve, and seeing debris from a main wheel rim and brake being thrown forward of the aircraft. The aircraft continued down the runway, barely controllable and without wheel brakes. It then collided with the capture barrier at the end of the runway and overran the runway. The operator attributed the explosive sound to failure of one of the left main gear wheel rims. A brake line on the left gear was severed during the occurrence.

Aircraft

Registration
N900MD
Reported as
Gates Learjet 36A
Category
Airplane
Serial number
045
Airframe hours
3,154
Engine
Garrett TFE-731-2-2B, 3,500 lbs thrust, turbo fan
Damage
Minor damage
Flight
Other work use · Part 91
Operator
Flight International, Inc.
Registered owner
Aircraft Trading Center
Airworthiness certificate
Standard, Normal
Flight plan
IFR
Airport
PAM · Tyndall Afb, runway 31L, 8,075 × 150 ft, concrete

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
58
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
16,000 total · 500 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 10 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
86 °F, dew point 55 °F
Altimeter
30.00 inHg
Observed at
PFN, 10 nm away