# NTSB MIA92IA100: Cessna 402C, N69SC, Miami, FL, March 18, 1992

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: March 18, 1992, 13:08 local (18:08 UTC)
- Place: Miami, FL
- Location: 25.7954° N, 80.2901° W: Placed by OpenAirDocs at MIAMI INTL (MIA), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=25.7954&lon=-80.2901&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report September 14, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 33010
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA92IA100
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33010/pdf
- Page: https://openairdocs.org/ntsb/MIA92IA100

## Probable cause

THE TOTAL FAILURE OF THE MAIN LANDING GEAR UPLOCK AND SEQUENCING VALVE FOR UNDETERMINED REASONS.

## Sequence of events

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

- Gear not extended, approach
  - landing gear - failure,partial (cause)
  - landing gear - jammed (cause)

## Analysis

THE PIC DEPARTED ON A 14 CFR PART 135 COMMUTER AIR CARRIER PASSENGER FLIGHT TO THE DESTINATION AIRPORT. ON ARRIVAL AND AFTER CONDUCTING THE BEFORE LANDING CHECK THE LEFT MAIN LANDING GEAR WOULD NOT EXTEND. THE NOSE GEAR AND RIGHT LANDING GEAR EXTENDED BUT WOULD NOT RETRACT. EMERGENCY LANDING GEAR EXTENSION WAS ATTEMPTED BY THE FLIGHT CREW WITH NEGATIVE RESULTS. THE PIC REQUESTED AND RECEIVED CLEARANCE BACK TO THE DEPARTURE AIRPORT. UPON ARRIVAL EMERGENCY LANDING GEAR EXTENSION WAS ATTEMPTED WITH NEGATIVE RESULTS. A LANDING WAS ACCOMPLISHED TO THE RUNWAY RESULTING IN MINOR DAMAGE TO THE AIRPLANE. THE TWO CREWMEMBERS AND TWO PASSENGERS WERE NOT INJURED. EXAMINATION OF THE AIRPLANE BY MAINTENANCE PERSONNEL REVEALED THE MAIN LANDING GEAR SEQUENCING VALVE FAILED FOR UNDETERMINED REASONS.

## Aircraft

- Registration: [N69SC](https://openairdocs.org/deregistered/N69SC-2020-06-02), registration cancelled 2020-06-02, S/N 402C0041, built 1979 (OpenAirDocs)
- Reported make and model: CESSNA 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (registry code 207590R) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 402C0041
- Airframe hours: 6392
- Engines: CONTINENTAL TSIO-520-VB 325 horsepower reciprocating
- Damage: Minor damage
- Flight: Part 135
- Operator: Gulfstream Int'L Airlines Inc
- Registered owner: Sam Leasing And Sales Inc
- Airworthiness certificate: Standard, Normal
- Last inspection: AAIP, March 16, 1992, 13 hours before
- Destination: RSD, ROCK SOUND, OF
- Flight plan: VFR/IFR
- Airport: MIA, Miami International, runway 12, 9,355 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 4,496 total, 996 in this make and model, 2,530 as pilot in command, 141 in the last 90 days, 60 in the last 30 days, 7 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 120° at 10 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 79 °F, dew point 57 °F
- Altimeter: 30.00 inHg
- Observed at: MIA, 1 nm away

## Other investigations on N69SC (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 ATL82DA172](https://openairdocs.org/ntsb/ATL82DA172), Jun 18, 1982: Cessna 402C (N69SC), North Myrtle Be, SC, 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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