# NTSB MIA84LA178: Cessna 172RG, N6145V, Pompano Beach, FL, June 6, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 6, 1984, 10:14 local (14:14 UTC)
- Place: Pompano Beach, FL
- Coordinates: 26.23031, -80.130828 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=26.2303&lon=-80.1308&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 31140
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA84LA178
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31140/pdf
- Page: https://openairdocs.org/ntsb/MIA84LA178

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise
  - electrical system,alternator - failure,total (contributing factor)
  - electrical system,battery - other
  - electrical system - inoperative
- Gear collapsed, landing - flare/touchdown
  - emergency procedure - not followed, pilot in command (cause)
  - gear down and locked - not performed, pilot in command (cause)
  - air/ground communications - not received, pilot in command (contributing factor)
  - unsafe/hazardous condition warning - continued, atc personnel(lcl/gnd/clnc)

## Analysis

WHILE ON A LOCAL FLT THERE WAS A FAILURE OF THE ACFT'S ELECTRICAL CHARGING SYSTEM DUE TO A BROKEN ALTERNATOR DRIVE BELT.THE PLT SECURED ALL UNNECESSARY ELECT EQUIP'T & RETURNED TO THE ARPT. UPON ENTERING PATTERN HE HEARD TOWER ASK IF HE WAS45V & IF SO TO ROCK HIS WINGS; HE DID SO & WAS CLEARED TO LAND. THIS WAS THE LAST RADIO TRANSMISSION RECEIVED BY THE PLT. THE PLT DID NOT GET A GEAR DOWN LIGHT WHEN GEAR WAS EXTENDED. REALIZING HIS APPROACH WAS HIGH & FAST, HE ELECTED TOGO AROUND. ON THE SECOND APPROACH THE TOWER CONTROLLER TRIED TO WARN THE PLT THAT HIS GEAR WAS NOT DOWN. THE PLT STATED HE CALLED THE TOWER TO ASK ABOUT HIS GEAR, & WHEN HE DID NOT RECEIVE A REPLY ASSUMED HIS GEAR WAS DOWN. THE GEAR COLLAPSED ON TOUCHDOWN & THE ACFT RAN OFF THE SIDE OF THE RWY. THE PLT STATED HE DID NOT USE THE EMERGENCY GEAR EXTENSION SYSTEM.

## Aircraft

- Registration: N6145V (not matched to a registry record)
- Reported make and model: CESSNA 172RG
- Category: Airplane
- Serial number: 172RG0586
- Airframe hours: 700
- Engines: LYCOMING O-360-F1A6 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Gary R. Gromet
- Registered owner: Over And Short Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 30, 1984, 13 hours before
- Airport: PMP, Pompano, runway 10, 3,500 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 1,145 total, 163 in this make and model, 982 as pilot in command, 25 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 110° at 10 knots
- Visibility: 8 statute miles
- Lowest ceiling: none
- Altimeter: 30.00 inHg
- Observed at: PMP

## 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 19840606022949A](https://openairdocs.org/incident/19840606022949A), Jun 6, 1984: Cessna 172RG, Pompano Beach, FL, Substantial damage. Lost electrical power due to a broken alternator belt. Failed to use emergency 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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