# NTSB CHI88FA143: Short Brothers SC.7, N30GA, Cleveland, OH, June 25, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Field investigation · Final report
- Date: June 24, 1988, 23:30 local (Jun 25, 1988, 03:30 UTC)
- Place: Cleveland, OH
- Coordinates: 41.429798, -81.819892 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.4298&lon=-81.8199&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 31, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 13946
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI88FA143
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13946/pdf
- Page: https://openairdocs.org/ntsb/CHI88FA143

## Probable cause

FATIGUE FAILURE ON THE RADIUS BETWEEN THE BODY OF THE NOSE LANDING GEAR AND THE PORTION CONTAINING THE ARMS.

## Sequence of events

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

- Nose gear collapsed, landing - roll
  - landing gear,nose gear assembly - fatigue (cause)

## Analysis

DURING THE LANDING ROLL-OUT, THE NOSE GEAR FORK ASSEMBLY FAILED & THE ACFT WAS DAMAGED. AN EXAM OF THE NOSE GEAR FORK ASSEMBLY REVEALED IT HAD FAILED FROM FATIGUE. THE FRACTURE WAS LOCATED ON THE MAIN BODY OF THE ASSEMBLY, JUST ABOVE THE FORK ARMS.

## Aircraft

- Registration: [N30GA](https://openairdocs.org/deregistered/N30GA-1995-11-21), registration cancelled 1995-11-21, S/N SH1839 (OpenAirDocs)
- Reported make and model: SHORT BROTHERS SC.7
- Registry model: [Short Bros. & Harland SC7 SERIES 3](https://openairdocs.org/model/short-bros-harland-sc7-series-3) (registry code 8100512) (OpenAirDocs)
- Category: Airplane
- Serial number: 1839
- Airframe hours: 13299
- Engines: AIRESEARCH TPE-331 715 horsepower turbo prop
- Damage: Substantial damage
- Flight: Part 135
- Operator: Air Cargo Carriers
- Registered owner: Capitol Aviation
- Airworthiness certificate: Standard, Utility; Standard, Normal
- Last inspection: AAIP, June 24, 1988, 2 hours before
- Departed: MDY, CHICAGO, IL
- Flight plan: VFR
- Airport: CLE, Cleveland Hopkins, runway 23L, 8,998 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 24; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 2,093 total, 93 in this make and model, 1,843 as pilot in command, 99 in the last 90 days, 68 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 160° at 4 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point 54 °F
- Altimeter: 30.00 inHg
- Observed at: CLE

## 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 19880624027279A](https://openairdocs.org/incident/19880624027279A), Jun 24, 1988: Stbros SC73, Cleveland, OH, Substantial damage. Nose gear fork broke off on landing as a result of prior fatigue cracks in the casting.

## Other investigations on N30GA (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 ANC95LA158](https://openairdocs.org/ntsb/ANC95LA158), Sep 1, 1995: Short Brothers SC-7 (N30GA), Skwentna, AK, destroyed, 1 fatal. Probable cause: THE PILOT'S CONTINUED VFR FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS. THE WEATHER WAS A FACTOR.

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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