# NTSB FTW83LA096: Mitsubishi MU-2B-30, N555CH, Lubbock, TX, January 21, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: January 20, 1983, 23:50 local (Jan 21, 1983, 05:50 UTC)
- Place: Lubbock, TX
- Coordinates: 33.590465, -101.850692 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.5905&lon=-101.8507&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 20796
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW83LA096
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/20796/pdf
- Page: https://openairdocs.org/ntsb/FTW83LA096

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - on ground/water, landing - roll
  - airport facilities,runway/landing area condition - snow covered (contributing factor)
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause)
- On ground/water collision with object, landing - roll
  - airport facilities,runway/landing area condition - snowbank (contributing factor)

## Analysis

THE PLT STATED THAT AFTER A NORMAL APPROACH, TOUCHDOWN & INITIAL ROLL-OUT, THE ACFT VEER RIGHT & STRUCK A 3 TO 4 FT SNOWBANK. AN INVESTIGATION REVEALED THAT SNOW HAD BEEN FALLING FOR OVER 12 HRS & AN 80 FT WIDE PATH HAD BEEN PLOWED DOWN THE CENTER OF THE RUWWAY. THERE WAS 3 INCHES OF SNOW REMAINING IN THE PLOWED AREA. NO ICE WAS REPORTED, BUT THE BRAKING ACTION WAS REPORTED AS NIL. THE PLT REPORTED THAT A PREVIOUS ICE STORM HAD DEPOSITED 1/4 TO 1/2 INCH OF ICE ON THE RUNWAY BEFORE SNOW BEGAN TO FALL. THE PRESENCE OF ICE HAD BEEN INDICATED EARLIER IN THE DAY WHEN A BOEING 737 HAD SLID OFF OF A TAXIWAY. THE PLT STATED THAT HAD HE KNOWN ABOUT THE ICE, HE WOULD NOT HAVE LANDED.

## Aircraft

- Registration: [N555CH](https://openairdocs.org/deregistered/N555CH-1994-12-09), registration cancelled 1994-12-09, S/N 508 (OpenAirDocs)
- Reported make and model: MITSUBISHI MU-2B-30
- Registry model: [Mitsubishi MU-2B-30](https://openairdocs.org/model/mitsubishi-mu-2b-30) (registry code 5780410) (OpenAirDocs)
- Category: Airplane
- Serial number: 508
- Airframe hours: 4708
- Engines: GARRETT TPE-331-6252M 724 horsepower turbo prop
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Clint Hurt & Associates, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, October 26, 1982, 64 hours before
- Departed: MAF, MIDLAND, TX
- Flight plan: IFR
- Airport: LBB, Lubbock Int'L., runway 17R, 11,500 × 150 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; airline transport, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 6,056 total, 988 in this make and model, 5,699 as pilot in command, 82 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Night/dark
- Wind: 60° at 8 knots
- Visibility: 5 statute miles
- Lowest ceiling: 100 ft
- Altimeter: 29.00 inHg
- Observed at: LBB

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19830120002169A](https://openairdocs.org/incident/19830120002169A), Jan 20, 1983: Mtsbsi MU2B30, Lubbock, TX, Substantial damage. During roll out on landing aircraft skidded into snowbank on side of runway separating left tip tank.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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