# NTSB MIA84LA263: Cessna 421, N11PM, Naples, FL, September 28, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 28, 1984, 11:52 local (15:52 UTC)
- Place: Naples, FL
- Location: 26.1524° N, 81.7756° W: Placed by OpenAirDocs at NAPLES MUNI (APF), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=26.1524&lon=-81.7756&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 31200
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA84LA263
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31200/pdf
- Page: https://openairdocs.org/ntsb/MIA84LA263

## Sequence of events

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

- Airframe/component/system failure/malfunction, takeoff - initial climb
  - landing gear,normal retraction/extension assembly - failure,partial (cause)
- Undershoot, landing - flare/touchdown
  - descent - misjudged, pilot in command (contributing factor)

## Analysis

DURING CLIMBOUT ON THIS FAA CHECK RIDE THE ACFT EXPERIENCED A NOSE GEAR EXTENSION-RETRACTION MALFUNCTION OF UNKNOWN ORIGIN. THE PLT WAS UNABLE TO EXTEND THE NOSE GEAR FOR LANDING. ACCORDING TO THE FAA EXAMINER ON THE FLT, THE PIC SHUT DOWN BOTH ENGINES ON FINAL APCH TO MINIMIZE PROP/ENGINE DAMAGE DURING ROLLOUT. HE DID THIS AT A POINT SUCH THAT THE LOSSOF PWR PREVENTED THE ACFT FROM REACHING THE END OF THE RWY. THE ACFT TOUCHED DOWN SHORT OF THE RWY THRESHOLD. THE SEVERITY OF THE DAMAGE WAS AGGRAVATED BY THE UNDERSHOOT, ACCORDING TO THE EXAMINER. ACCORDING TO THE PIC, HE LANDED IN THE GRASS BESIDE AND NOT BEFORE THE RWY THRESHOLD. THE FAA EXAMINER WAS IN THE REAR OF THE ACFT DURING LANDING TO AID INKEEPING THE NOSE UP DURING ROLLOUT. ACCORDING TO THE PIC, DAMAGE WAS LIMITED TO THE NOSE SECTION (RADAR ANTENNA) AND ONEBLADE ON EACH PROPELLER.

## Aircraft

- Registration: N11PM (not matched to a registry record)
- Reported make and model: CESSNA 421
- Category: Airplane
- Serial number: 421
- Airframe hours: 2201
- Engines: CONTINENTAL GTSIO-520 375 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Royal Airways, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 14, 1984, 12 hours before
- Airport: APF, Naples Municipal, runway 22, 5,000 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 27; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 2,932 total, 147 in this make and model, 2,822 as pilot in command, 54 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 7 knots
- Visibility: 7 statute miles
- Lowest ceiling: 5,000 ft broken
- Altimeter: 29.00 inHg
- Observed at: APF

## 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 19840928059619A](https://openairdocs.org/incident/19840928059619A), Sep 28, 1984: Cessna 421B, Naples, FL, Substantial damage. Unable to lock down nose gear then landed short of the runway trying to save the props. Examiner in back seat.

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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