# NTSB CHI92LA012: Rockwell 112YC, N4603W, Detroit, MI, October 16, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 16, 1991, 17:45 local (21:45 UTC)
- Place: Detroit, MI
- Coordinates: 42.400253, -82.999977 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.4003&lon=-83.0000&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 8, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 15337
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI92LA012
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15337/pdf
- Page: https://openairdocs.org/ntsb/CHI92LA012

## Probable cause

THE PILOT'S FAILURE TO PERFORM A MAJOR REPAIR AND CONTINUED OPERATION OF THE AIRPLANE WITH KNOWN DEFICIENCIES.

## Sequence of events

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

- Airframe/component/system failure/malfunction, approach - vfr pattern - final approach
  - landing gear,nose gear - inoperative
  - operation with known deficiencies in equipment - continued, pilot in command (cause)
  - maintenance,major repair - not performed, pilot in command (cause)
- Gear not extended, landing - flare/touchdown
  - aircraft control - performed, pilot in command

## Analysis

THE ACCIDENT AIRPLANE LANDED WITH THE NOSE LANDING GEAR PARTIALLY EXTENDED.  THE PILOT STATED, 'I APPROACHED GLIDE SLOPE I LOWERED THE GEAR. I GOT GREEN LIGHTS ONLY ON THE TWO MAIN GEAR AND NO NOSE GEAR.'  THE PILOT PERFORMED A GO AROUND AND REQUESTED CLEARANCE TO A CLEAR AREA IN ORDER TO ASCERTAIN THE NATURE OF THE LANDING GEAR PROBLEM.  WHEN ALL ATTEMPTS TO LOWER THE NOSE LANDING GEAR WERE UNSUCCESSFUL THE PILOT ORDERED HIS PASSENGER INTO THE REAR SEAT AND LANDED ON THE SOD ADJACENT TO THE RUNWAY. FEDERAL AVIATION ADMINISTRATION (FAA) INSPECTORS FOUND PREEXISTING STRUCTURAL AND SHEET METAL DAMAGE IN THE NOSE AREA OF THE AIRPLANE DURING A POST ACCIDENT INSPECTION.

## Aircraft

- Registration: [N4603W](https://openairdocs.org/aircraft/N4603W), registered now, S/N 13093 (OpenAirDocs)
- Reported make and model: ROCKWELL 112YC
- Registry model: [Rockwell International 112TC](https://openairdocs.org/model/rockwell-international-112tc) (registry code 7630306) (OpenAirDocs)
- Category: Airplane
- Serial number: 13093
- Engines: LYCOMING T0-360-C1A6D 210 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Raymond A. Pedersen
- Registered owner: Raymond A. Pedersen
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 5, 1991
- Departed: TVC, TRAVERSE CITY, MI
- Flight plan: VFR
- Airport: DET, Detroit City

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 70; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 9,705 total, 620 in this make and model, 9,400 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 13 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 55 °F, dew point 27 °F
- Altimeter: 30.00 inHg
- Observed at: DET, 1 nm away

## 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 19911016050709A](https://openairdocs.org/incident/19911016050709A), Oct 16, 1991: Gulstm 112TC, Detroit, MI, Substantial damage. Nose gear failed to fully extend. Landed on grass. Gear operated normal on post accident test. Prior nose 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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