# NTSB NYC86LA043: Cessna 172K, N7506G, Bloomsburg, PA, November 28, 1985

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: November 28, 1985, 11:15 local (16:15 UTC)
- Place: Bloomsburg, PA
- Coordinates: 40.999965, -76.450363 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.0000&lon=-76.4504&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 30272
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC86LA043
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/30272/pdf
- Page: https://openairdocs.org/ntsb/NYC86LA043

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise - normal
  - electrical system,alternator - shorted (cause)
- Forced landing, descent - emergency
- Nose over, landing - flare/touchdown
  - terrain condition - uphill (contributing factor)
  - terrain condition - soft (contributing factor)

## Analysis

THE ACFT WAS ON AN IFR FLT EN ROUTE TO ALLEGHENY COUNTY ARPT AT 6000 FT WHEN AN ELECTRICAL FAILURE OCCURRED. THE PLT EXECUTED A PRECAUTIONARY LANDING IN A MUDDY FLD. THE NOSE WHEEL CAUGHT IN MUD AND THE ACFT NOSED OVER. EXAMINATION OF THE ELECTRICAL SYSTEM REVEALED THAT THE ALTERNATOR SYSTEM FAILED DUE INTERNAL STRUCTURE WEAR WHICH SHORTED OUT THE ALTERNATOR.

## Aircraft

- Registration: [N7506G](https://openairdocs.org/deregistered/N7506G-2013-03-25), registration cancelled 2013-03-25, S/N 17259206, built 1970 (OpenAirDocs)
- Reported make and model: CESSNA 172K
- Registry model: [Cessna 172K](https://openairdocs.org/model/cessna-172k) (registry code 2072430) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17259206
- Airframe hours: 5734
- Engines: LYCOMING O-320-E2D 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Circle W Flying Club
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 22, 1985, 198 hours before
- Departed: AVP, WILKES-BARRE, PA
- Destination: AGC, PITTSBURGH, PA
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 57; private; airplane ratings: single-engine sea; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 555 total, 314 in this make and model, 235 as pilot in command, 26 in the last 90 days, 5 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Day
- Wind: calm
- Visibility: 1 statute miles
- Lowest ceiling: 6,000 ft unknown
- Temperature: 37 °F, dew point 36 °F
- Altimeter: 29.00 inHg
- Observed at: AVP

## 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 19851128077439A](https://openairdocs.org/incident/19851128077439A), Nov 28, 1985: Cessna 172K, Bloomsburg, PA, Substantial damage. All electrical equipment failed inflight. Aircraft overturned during emergency landing. Alternator malfunctioned.

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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