# NTSB ATL89LA133: Beech A36, N6613A, Macon, GA, April 22, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 22, 1989, 12:48 local (16:48 UTC)
- Place: Macon, GA
- Coordinates: 32.799453, -83.690162 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.7995&lon=-83.6902&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 2, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 8018
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL89LA133
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/8018/pdf
- Page: https://openairdocs.org/ntsb/ATL89LA133

## Probable cause

THE PILOT DELAYED REMEDIAL ACTION WHEN THE IMMINENT LOSS OF ELECTRICAL POWER WAS OBSERVED. ADDITIONALLY, THE PILOT'S FAILURE TO EXECUTE THE APPROPRIATE EMERGENCY PROCEDURE AND MANUALLY LOWER THE LANDING GEAR, RESULTED IN ITS COLLAPSE UPON LANDING. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT'S LACK OF KNOWLEDGE REGARDING THE POWER SOURCE FOR THE AIRPLANE INSTRUMENTATION. WHEN CONFRONTED WITH THE ZERO OIL PRESSURE INDICATION THE PILOT'S SELF INDUCED PRESSURE PRECIPITATED AN UNNECESSARY HURRIED LANDING.

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise - normal
  - electrical system,alternator - failure,total
  - remedial action - delayed, pilot in command (cause)
  - emergency procedure - not followed, pilot in command (cause)
- Gear collapsed, landing
  - procedures/directives - not followed, pilot in command (cause)
  - self-induced pressure, pilot in command (cause)

## Analysis

PIC NOTED AMMETER INDICATED DISCHARGE DURING FLT. HE DECLINED TO DIVERT & LAND TO ASSESS MALFUNCTION UNTIL TOTAL LOSS OF ELECTRICAL POWER. LDG GEAR EXTENDED NORMALLY AT BEGINNING OF DESCENT FROM 6000 FT. USING HAND HELD RADIO PIC ASKED TWR CONTROLLER TO EXAMINE LDG GEAR WHO RPTED IT WAS DOWN. MANUAL EXTENSION WAS NOT DONE IAW FLIGHT MANUAL EMER PROCEDURES. AFTER FLY BY OIL PRESS GAGE WENT TO ZERO. PIC DECIDED TO LAND IMMEDIATELY, NOSE & RT MAIN GEAR COLLAPSED ON TOUCHDOWN.

## Aircraft

- Registration: [N6613A](https://openairdocs.org/aircraft/N6613A), registered now, S/N E-2070, built 1983 (OpenAirDocs)
- Reported make and model: BEECH A36
- Registry model: [Beech A36](https://openairdocs.org/model/beech-a36) (registry code 1151604) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: E-2070
- Airframe hours: 1210
- Engines: CONTINENTAL IO-540-BB 285 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Gainesville Health & Fitness
- Airworthiness certificate: Standard, Normal
- Departed: GNV, GAINESVILLE, FL
- Destination: ATL, ATLANTA, GA
- Flight plan: IFR
- Airport: MCN, Lewis B. Wilson, runway 5, 6,501 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, expired; seat: left; flight hours: 1,251 total, 481 in this make and model, 1,209 as pilot in command, 60 in the last 90 days, 20 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 5 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 79 °F, dew point 52 °F
- Altimeter: 30.00 inHg
- Observed at: MCN, 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 19890422012049A](https://openairdocs.org/incident/19890422012049A), Apr 22, 1989: Beech A36, Macon, GA, Substantial damage. Lost electrics. Did not use emergency gear extension. Gear collapsed 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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