# NTSB FTW86LA174: Beech TC-45J, N706M, Laredo, TX, September 30, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 30, 1986, 12:02 local (17:02 UTC)
- Place: Laredo, TX
- Location: 27.5442° N, 99.4616° W: Placed by OpenAirDocs at LAREDO INTL (LRD), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=27.5442&lon=-99.4616&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 22098
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW86LA174
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22098/pdf
- Page: https://openairdocs.org/ntsb/FTW86LA174

## Sequence of events

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

- Main gear collapsed, takeoff - roll/run
  - landing gear,main gear - previous damage (cause)
  - maintenance,inspection - inadequate (cause)
  - landing gear,main gear - overload
  - reason for occurrence undetermined (cause)

## Analysis

JUST AFTER THE PLT BEGAN THE TAKEOFF ROLL, THE RIGHT MAIN LANDING GEAR COLLAPSED. AN EXAM REVEALED THAT OVERLOAD FAILURE OF THE RIGHT MAIN LANDING GEAR TRUNION TUBE HAD OCCURRED. THERE WAS EVIDENCE THAT THE OVERLOAD RESULTED FROM EITHER A PREVIOUS HARD LANDING OR FROM A FORK LIFT COLLIDING WITH THE AIRCRAFT WHILE IT WAS BEING LOADED.

## Aircraft

- Registration: [N706M](https://openairdocs.org/deregistered/N706M-1994-01-04), registration cancelled 1994-01-04, S/N 12360 (OpenAirDocs)
- Reported make and model: BEECH TC-45J
- Registry model: [Beech TC-45J](https://openairdocs.org/model/beech-tc-45j) (registry code 1151022) (OpenAirDocs)
- Category: Airplane
- Serial number: 12360
- Airframe hours: 15194
- Engines: AIRESEARCH TPE-331-1101B 600 horsepower turbo prop
- Damage: Substantial damage
- Flight: Part 135
- Registered owner: Sabre Aviation
- Airworthiness certificate: Standard, Utility
- Last inspection: AAIP, September 18, 1986, 30 hours before
- Departed: LRD
- Destination: MEM, MEMPHIS, TN
- Flight plan: IFR
- Airport: LRD, Laredo Intl, runway 14, 5,927 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 2,900 total, 250 in this make and model, 130 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 22 knots, gusting 26
- Visibility: 10 statute miles
- Lowest ceiling: 2,500 ft overcast
- Temperature: 88 °F, dew point 73 °F
- Altimeter: 29.00 inHg
- Observed at: LRD

## 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 19860930049779A](https://openairdocs.org/incident/19860930049779A), Sep 30, 1986: Beech TC45J, Laredo, TX, Substantial damage. Right main gear collapsed during takeoff roll. No evidence of progressive type failuer of trunion tube.

## Other investigations on N706M (1)

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.

- [NTSB NYC93FA044](https://openairdocs.org/ntsb/NYC93FA044), Dec 15, 1992: Beech 18T (N706M), Cleveland, OH, destroyed, 1 fatal. Probable cause: THE IMPROPER INSTALLATION OF THE ELEVATOR BY COMPANY MAINTENANCE PERSONNEL AND THE LACK OF PROPER INSPECTIONS BY A COMPANY CERTIFIED MECHANIC/INSPECTOR AND THE FAA CERTIFIED MECHANIC WITH INSPECTOR…

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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