# NTSB MIA88LA169: Boeing HP-B-377, Miami, FL, May 13, 1988

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: May 13, 1988, 04:26 local (08:26 UTC)
- Place: Miami, FL
- Location: 25.7743° N, 80.1937° W: Placed by OpenAirDocs: center of Miami, FL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=25.7743&lon=-80.1937&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 2 uninjured
- Status: Completed, report August 8, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 32180
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA88LA169
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32180/pdf
- Page: https://openairdocs.org/ntsb/MIA88LA169

## 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 - shorted (cause)
  - electrical system - loss,total (contributing factor)
- Miscellaneous/other, maneuvering
  - emergency procedure - attempted, copilot/second pilot
  - flight compartment light(s) - inoperative (contributing factor)
  - became lost/disoriented, copilot/second pilot (contributing factor)

## Analysis

ACCORDING TO COMPANY PERSONNEL, AS THE ACFT ROTATED FOR TAKEOFF, ONE GENERATOR TRIPPED OFF THE LINE. THEN AS THE LANDING GEAR WAS SELECTED UP, THE OTHER THREE GENERATORS SIMULTAINEOUSLY TRIPPED OFF. THE ACFT WAS FLOWN ON AN EXTENDED PATTERN WHILE THE CREW MANUALLY EXTENDED THE LANDING GEAR AND LANDED THE ACFT WITH NO DAMAGE SUSTAINED. EXAMINATION OF THE LANDING GEAR SYSTEM AFTER LANDING REVEALED THAT THE NOSE GEAR RETRACT ACTUATOR MOTOR HAD SHORTED OUT CAUSING THE GENERATORS TO TRIP OFF THE LINE. THE CO-PLT WAS INJURED TRYING TO MANUALLY LOWER THE NOSE GEAR. HE STEPPED INTO THE UNLIT HATCH AND BROKE HIS LEG.

## Aircraft

- Registration: HI468 (not matched to a registry record)
- Reported make and model: BOEING HP-B-377
- Category: Airplane
- Serial number: 53-244
- Airframe hours: 9370
- Engines: P&W R-4360-59BCB2 3500 horsepower reciprocating
- Damage: No damage
- Flight: Part 129
- Operator: Aerochago Airline S.A.
- Registered owner: Agro Air Inc.
- Airworthiness certificate: Standard, Transport
- Destination: MDSD, SANTO DOMINGO, OF
- Flight plan: IFR
- Airport: MIA, Miami Int'L, runway 27L, 13,000 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; airline transport; airplane ratings: multi-engine land; instrument ratings: airplane; medical: unknown, unknown; seat: left; flight hours: 13,900 total, 2,100 in this make and model

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 90° at 4 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 73 °F, dew point 66 °F
- Altimeter: 30.00 inHg
- Observed at: MIA

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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