# NTSB LAX86LA118: Mitsubishi MU-300, N14DM, Carlsbad, CA, February 8, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: February 8, 1986, 09:34 local (17:34 UTC)
- Place: Carlsbad, CA
- Coordinates: 33.309936, -116.839187 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.3099&lon=-116.8392&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 25074
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX86LA118
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25074/pdf
- Page: https://openairdocs.org/ntsb/LAX86LA118

## Sequence of events

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

- Overrun, landing - roll
  - terrain condition - wet (contributing factor)
  - brakes(emergency) - not used, pilot in command (contributing factor)
  - weather condition - rain (contributing factor)
  - brakes(emergency) - not used, copilot/second pilot (contributing factor)
  - weather condition - unfavorable wind (contributing factor)
  - planned approach - inadequate, pilot in command (cause)
  - compensation for wind conditions - not corrected, pilot in command (cause)
  - all available runway - not used, pilot in command (cause)
  - proper touchdown point - exceeded, pilot in command (cause)
  - emergency procedure - not performed, pilot in command (cause)
- Nose gear collapsed, landing - roll

## Analysis

THE ACFT RAN OFF THE END OF RWY 24 AT THE MCCLELLEN-PALOMAR ARPT. LIGHT RAIN WAS REPORTED AT THE TIME AND THE WINDS WERE REPORTED TO THE PLTS AS BEING FROM 340 DEGS AT 10 KTS. THE RWY IS CONSTRUCTED OF A POROUS FRICTION COURSE (PFC) MATERIAL WHICH PROVIDES GOOD BRAKING ACTION AND A HYDROPLANE RESISTANT SURFACE. WITNESSES STATED THE ACFT TOUCHED DOWN LONG AND FAST. THE PLTS STATED THEY TOUCHED DOWN 'A LITTLE LONG' AND THE BRAKED FAILED AS THEY NEARED THE END OF THE RWY. TESTS ON THE BRAKE AND HYDRAULIC SYSTEMS INDICATED THEY OPERATED SATISFACTORILY WITH NO FAILURES NOTED. THE PLTS STATED THEY DID NOT UTILIZE THE EMERGENCY BRAKES AND DID NOT STATE WHY THEY DIDN'T. THE PLT STATED THAT THE LANDING DATA COMPUTED WAS FOR A 10 KT HEADWIND COMPONENT ON A DRY RWY.

## Aircraft

- Registration: N14DM (not matched to a registry record)
- Reported make and model: MITSUBISHI MU-300
- Category: Airplane
- Serial number: A017SA
- Airframe hours: 1123
- Engines: P&W JT15D-4 2500 lbs thrust turbo jet
- Damage: Substantial damage
- Flight: Executive/Corporate, Part 91
- Registered owner: Raleigh Enterprises
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, December 19, 1985, 46 hours before
- Departed: SANTA MONICA, CA
- Flight plan: IFR
- Airport: CRQ, Carlsbad-Palomar, runway 24, 4,700 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; airline transport, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 2,327 total, 593 in this make and model, 105 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 7 statute miles
- Lowest ceiling: 1,400 ft overcast
- Temperature: 52 °F
- Altimeter: 29.00 inHg
- Observed at: CRQ

## 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 19860208003819A](https://openairdocs.org/incident/19860208003819A), Feb 8, 1986: Mtsbsi MU300, Carlsbad, CA, Substantial damage. Landed long. Fast, with a quartering tailwind. Off runway end, ground looped to stop. No mechanical defects founds.

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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