# NTSB ANC86IA137: Cessna 207A, N1472M, Togiak, AK, August 24, 1986

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: August 23, 1986, 16:33 local (Aug 24, 1986, 00:33 UTC)
- Place: Togiak, AK
- Coordinates: 59.210563, -160.540115 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=59.2106&lon=-160.5401&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 6 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4616
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC86IA137
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4616/pdf
- Page: https://openairdocs.org/ntsb/ANC86IA137

## Sequence of events

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

- Nose gear collapsed, taxi - from landing
  - landing gear,nose gear assembly - failure,partial (cause)
  - maintenance,inspection - inadequate, company maintenance personnel (contributing factor)

## Analysis

AFTER LANDING THE AIRPLANE WAS TAXIING TO PARK AND THE PILOT NOTICED THE STEERING BECOMING STIFF. HE STOPPED THE AIRPLANE AND EXAMINED THE NOSE GEAR AND FOUND IT TO HAVE PIVOTED FORWARD WITH THE WHEEL COMING TO REST AGAINST THE NOSE COWLING. THE MECHANIC DETERMINED THAT THE AFT DRAG LINK BOLT HAD FAILED AND ALLOWED THE DRAG LINK TO SEPARATE FROM THE SECONDARY FIREWALL.

## Aircraft

- Registration: [N1472M](https://openairdocs.org/deregistered/N1472M-1996-06-13), registration cancelled 1996-06-13, S/N 20700668, built 1980 (OpenAirDocs)
- Reported make and model: CESSNA 207A
- Registry model: [Cessna 207A](https://openairdocs.org/model/cessna-207a) (registry code 2073605) (OpenAirDocs)
- Registry engine: [Continental IO-520-F](https://openairdocs.org/engine/continental-io-520-f) (registry code 17237, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 20700668
- Airframe hours: 3935
- Engines: CONTINENTAL IO520-F-13 300 horsepower reciprocating
- Damage: Minor damage
- Flight: Part 135
- Registered owner: Harolds Air Service
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, August 7, 1986, 65 hours before
- Departed: DLG, DILLINGHAM, AK
- Destination: BET, BETHEL, AK
- Flight plan: VFR
- Airport: TOG, Togiak, runway 5, 4,300 × 100 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; commercial; airplane ratings: single-engine land, single-engine sea; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 5,000 total, 3,020 in this make and model, 4,800 as pilot in command, 401 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 8 knots
- Visibility: 10 statute miles
- Lowest ceiling: 1,000 ft broken
- Temperature: 50 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Incident 19860823072949I](https://openairdocs.org/incident/19860823072949I), Aug 23, 1986: Cessna 207A, Togiak Village, AK, Minor damage. Nose geear pivoted forward on landing. Drag brace attachment bolt found sheared.

## Other investigations on N1472M (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 ANC88LA008](https://openairdocs.org/ntsb/ANC88LA008), Oct 17, 1987: Cessna 207A (N1472M), Sheldon Point, AK, substantial damage

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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