# NTSB MIA87IA170: Piper PA-44-180, N180PA, Jacksonville, FL, June 3, 1987

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: June 3, 1987, 18:28 local (22:28 UTC)
- Place: Jacksonville, FL
- Coordinates: 30.329769, -81.579673 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.3298&lon=-81.5797&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 10, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 31796
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA87IA170
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31796/pdf
- Page: https://openairdocs.org/ntsb/MIA87IA170

## Sequence of events

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

- Main gear collapsed, landing - roll
  - landing gear,main gear strut - fatigue (cause)
  - material inadequate, manufacturer (cause)
  - landing gear,main gear strut - failure,total (cause)
- Loss of control - on ground/water, landing - roll
  - directional control - not possible

## Analysis

DURING THE LANDING ROLL THE RT MAIN LANDING GEAR COLLAPSED. EXAMINATION OF THE LANDING GEAR REVEALED THAT THE STRUT HOUSING (TRUNNION) FAILED DUE TO OVERLOAD WHICH WAS PRECIPITATED BY FATIGUE AND CAUSED BY A STRESS RISER LOCATED ON A MANUFACTURING SEAM.

## Aircraft

- Registration: [N180PA](https://openairdocs.org/deregistered/N180PA-2019-01-17), registration cancelled 2019-01-17, S/N 44-7995105, built 1979 (OpenAirDocs)
- Reported make and model: PIPER PA-44-180
- Registry model: [Piper PA-44-180](https://openairdocs.org/model/piper-pa-44-180) (registry code 7104402) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 447995405
- Airframe hours: 4349
- Engines: LYCOMING O-360-EIA6D 180 horsepower reciprocating
- Damage: Minor damage
- Flight: Instructional, Part 91
- Operator: Aviators Unlimited
- Registered owner: Cherly C Paramore
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, April 22, 1987, 71 hours before
- Airport: CRG, Craig Municipal, runway 13, 4,007 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; flight instructor, airline transport; airplane ratings: single-engine sea, multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: right; flight hours: 4,368 total, 605 in this make and model, 4,233 as pilot in command, 320 in the last 90 days, 10 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 110° at 12 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 82 °F, dew point 70 °F
- Altimeter: 30.00 inHg
- Observed at: CRG

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.