# NTSB LAX92LA253: Piper PA-60-700P, N626NP, Coalinga, CA, June 19, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 18, 1992, 18:30 local (Jun 19, 1992, 01:30 UTC)
- Place: Coalinga, CA
- Coordinates: 36.18988, -120.389862 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.1899&lon=-120.3899&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report September 28, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 27653
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX92LA253
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/27653/pdf
- Page: https://openairdocs.org/ntsb/LAX92LA253

## Probable cause

THE PILOT'S FAILURE TO ATTAIN THE PROPER TOUCHDOWN POINT AND MISJUDGING THE AIRCRAFT'S DISTANCE FROM THE RUNWAY. CONTRIBUTING TO THIS ACCIDENT WAS THE CROSSWIND CONDITION AND THE NOSE AND MAIN LANDING GEAR COLLAPSING DUE TO OVERLOAD.

## Sequence of events

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

- Undershoot, landing - flare/touchdown
  - weather condition - crosswind (contributing factor)
  - distance - misjudged, pilot in command (cause)
  - proper touchdown point - not attained, pilot in command (cause)
- Gear collapsed, landing - roll
  - landing gear,tire - burst (contributing factor)
  - landing gear,main gear - overload (contributing factor)
  - landing gear,nose gear - overload (contributing factor)

## Analysis

THE PILOT ALIGNED THE AIRCRAFT WITH RUNWAY 32 FOR LANDING. HE SAID THAT THERE WAS A 15 KNOT WIND BLOWING FROM 270 DEGREES AND THAT HE ENTERED A LEFT CRAB AS THE AIRCRAFT DESCENDED FOR THE RUNWAY. AS THE AIRCRAFT APPROACHED THE RUNWAY THE PILOT SAID HE ENTERED A SLIP. THE AIRCRAFT LANDED SHORT AND THE LEFT LANDING GEAR COLLIDED WITH THE APPROACH EDGE OF THE RUNWAY. THE PILOT SAID THAT HE HEARD A MUFFLED BANG AND A POP NOISE FOLLOWED BY A LOUD FLOPPING NOISE FROM THE LEFT MAIN LANDING GEAR AS THE AIRCRAFT SKIDDED DOWN THE RUNWAY. AT APPROXIMATELY MIDFIELD THE AIRCRAFT SKIDDED OFF THE LEFT SIDE OF THE RUNWAY AND IMPACTED A WIND DIRECTION INDICATOR. THE INDICATOR WAS LOCATED ABOUT 100 FEET  LEFT OF RUNWAY 32. THE NOSE GEAR AND RIGHT MAIN LANDING GEAR COLLAPSED DURING THE AIRCRAFT'S GROUND SLIDE.

## Aircraft

- Registration: [N626NP](https://openairdocs.org/aircraft/N626NP), registered now, S/N 60-8423014 (OpenAirDocs)
- Reported make and model: PIPER PA-60-700P
- Registry model: [Piper PA-60-700P](https://openairdocs.org/model/piper-pa-60-700p) (registry code 7106023) (OpenAirDocs)
- Category: Airplane
- Serial number: 608423014
- Airframe hours: 1226
- Engines: LYCOMING TIO-540-OU2A 350 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Trustee, Nils P.
- Registered owner: Trustee, Nils P.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 20, 1992, 48 hours before
- Departed: CCR, CONCORD, CA
- Destination: 308
- Airport: 308, Harris Ranch, runway 32, 2,820 × 30 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 57; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 5,900 total, 1,300 in this make and model, 40 in the last 90 days, 10 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 15 knots
- Visibility: 10 statute miles
- Lowest ceiling: none

## 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 19920618021189A](https://openairdocs.org/incident/19920618021189A), Jun 18, 1992: Piper PA60700P, Coalinga, CA, Substantial damage. Gear impacted raised runway threshold. Blew left tire. Skidded into wind sock pole. Side load collapsed right gear.

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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