MKC89IA024

NTSB incident investigation · Mcdonnell Douglas DC9-31 · Minneapolis, MN · November 16, 1988

Incident · No injuriesIncident investigationFinal report
Date
November 15, 1988, 20:50 local (Nov 16, 1988, 02:50 UTC)
Place
Minneapolis, MN
Injuries
106 uninjured
Damage
Minor damage
Phase of flight
Takeoff
Aircraft
N965VJMcdonnell Douglas DC9-31
Weather
Instrument (IMC) · Night/dark
Status
Completed · report June 11, 1990
Report
Approved by Office Director
FAA report
19881115068459I
Case key
34702

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

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Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

The failure of the left main landing gear tire carcass and the ingestion of the tire debris into the left engine which hindered normal operation.

Analysis

The scheduled commuter flt was boarded with passengers and acrew consisting of 3 flight attendants, the first officer and the captain for a flt to pittsburg, PA. After a gate release, the acft was taxied to rwy 29R and prepared for takeoff. The takeoff roll progressed normally until a point 4,200 feet from initiation. The crew reported a vibration and the left eng power diminished. The takeoff was aborted, but the acft speed at the time of the abort and rwy distance remaining was insufficient to avoid departing the end of the rwy. The acft became mired in the rain soaked terrain up to the axle. Post-incident exam of the left main gear tires indicated a failure of the tire carcass. The tires had been retreaded 300 and 244 landings respectively prior to the failure. The carcass however, had no records to show an operational or replacement history. The reason for the failure of the carcass was not determined. The cause of the initial power loss on the left eng was from injestion of tire debris.

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,tire - failure,totalCause
Reason for occurrence undeterminedCause
Loss of engine power(partial) - nonmechanicalTakeoff - aborted
1 engine - foreign objectCause
Abort above v1 - initiatedPilot in command
OverrunTakeoff - aborted
Remedial action - performed
Airspeed - excessiveFactor

Aircraft

Registration
N965VJ
Reported as
Mcdonnell Douglas DC9-31
Category
Airplane
Serial number
47374
Airframe hours
52,320
Engine
P&W JT8D-7, 14,000 lbs thrust, turbo jet
Damage
Minor damage
Flight
Part 121
Operator
Usair
Registered owner
Usair
Airworthiness certificate
Standard, Transport
Departed
MSP · Minneapolis, MN
Destination
PIT · Pittsburgh, PA
Flight plan
IFR
Airport
MSP · Minneapolis St Paul Intl, runway 29R, 8,202 × 150 ft, concrete

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
52
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
23,000 total · 6,000 in this make and model · 14,000 as pilot in command · 240 in the last 90 days · 88 in the last 30 days · 7 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Night/dark
Wind
350° at 19 knots, gusting 25
Visibility
7 statute miles
Lowest ceiling
500 ft overcast
Temperature
37 °F, dew point 36 °F
Altimeter
29.00 inHg
Observed at
MSP

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N965VJ · 1

Matched to the same aircraft by N-number and date.