# NTSB MKC82IA071: Beech F33A, N2048Z, Chesterfield, MO, May 4, 1982

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: May 4, 1982, 17:30 local (22:30 UTC)
- Place: Chesterfield, MO
- Coordinates: 38.649017, -90.530838 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.6490&lon=-90.5308&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 4, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 70219
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC82IA071
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/70219/pdf
- Page: https://openairdocs.org/ntsb/MKC82IA071

## Sequence of events

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

- Nose gear collapsed, landing - flare/touchdown
  - electrical system,alternator - failure,total (contributing factor)
  - electrical system,voltage regulator - erratic (contributing factor)
  - warning system(other) - inoperative (contributing factor)
  - electrical system,battery - output low (contributing factor)
  - landing gear,normal retraction/extension assembly - bent (cause)
  - landing gear,emergency extension assembly - movement restricted (cause)
  - emergency procedure - attempted, pilot in command

## Analysis

WHEN THE AIRCRAFT WAS RETURNING FOR LANDING, THE PILOT SELECTED GEAR DOWN AND STATED THAT HE FELT IT EXTEND BUT COULD NOT RECALL SEEING THE GREEN GEAR DOWN LIGHTS BECAUSE HE WAS SCANNING FOR TRAFFIC. SHORTLY AFTERWARDS HE EXPERIENCED A RAPID ELECTRICAL POWER DECAY. THE PILOT SATISFIED HIMSELF THAT THE GEAR WAS LOCKED DOWN BY USING THE EMERGENCY GEAR EXTENSION SYSTEM. AFTER RECEIVING A GREEN LIGHT FROM THE TOWER, THE PILOT LANDED ON THE MAIN GEAR AND EASED THE NOSE WHEEL ONTO THE RUNWAY. AS THE NOSE WHEEL TOUCHED THE RUNWAY THE NOSE GEAR COLLAPSED AND THE PROP AND NOSE OF THE AIRPLANE STRUCK THE RUNWAY. SUBSEQUENT INSPECTION REVEALED THAT ONE DIODE IN THE ALTERNATOR AND THE STORAGE BATTERY WERE INOPERATIVE, AND THE VOLTAGE REGULATOR WAS NOT OPERATING PROPERLY. THE NOSE GEAR EXTENSION BRACE WAS FOUND BENT ENOUGH TO PREVENT THE NOSE GEAR FROM EXTENDING COMPLETELY.

## Aircraft

- Registration: [N2048Z](https://openairdocs.org/aircraft/N2048Z), registered now, S/N CE-828, built 1978 (OpenAirDocs)
- Reported make and model: BEECH F33A
- Registry model: [Beech F33A](https://openairdocs.org/model/beech-f33a) (registry code 1151425) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: CE828
- Airframe hours: 800
- Engines: CONTINENTAL IO-520-BB 285 horsepower reciprocating
- Damage: Minor damage
- Flight: Personal, Part 91
- Operator: Air Safety Investigator'S, Inc
- Registered owner: Air Safety Investigator'S, Inc
- Departed: SUS, CHESTERFIELD, MO
- Destination: SUS, CHESTERFIELD, MO
- Airport: SUS, Spirit Of St. Louis, runway 25, 6,008 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; flight hours: 2,897 total, 986 in this make and model, 2,722 as pilot in command, 106 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 10 knots
- Visibility: 7 statute miles
- Lowest ceiling: 6,000 ft overcast
- Temperature: 172 °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 19820504036589I](https://openairdocs.org/incident/19820504036589I), May 4, 1982: Beech F33A, Chesterfield, MO, Minor damage. On downwind, pilot lost electrical system. Checked gear with manual system. Nose gear folded on landing.

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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