# NTSB DCA88MA059: Embraer EMB-110P, N65DA, Lawton, OK, May 24, 1988

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Major investigation · Final report
- Date: May 24, 1988, 14:54 local (19:54 UTC)
- Place: Lawton, OK
- Location: 34.5677° N, 98.4166° W: Placed by OpenAirDocs at LAWTON-FORT SILL RGNL (LAW), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.5677&lon=-98.4166&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious, 6 minor
- Status: Completed, report December 29, 1989
- Report: Approved by Office Director
- NTSB office: Major Investigations Division
- NTSB case key (mKey): 15899
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA88MA059
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15899/pdf
- Page: https://openairdocs.org/ntsb/DCA88MA059

## Probable cause

NONE SUBMITTED

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, takeoff - initial climb
  - 1 engine
  - compressor assembly,blade - previous damage (contributing factor)
  - compressor assembly,blade - overtemperature (contributing factor)
  - compressor assembly,blade - separation (contributing factor)
  - propeller feathering - performed
- In flight collision with terrain/water, takeoff - initial climb
  - emergency procedure - improper, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
  - object - fence

## Analysis

THE NUMBER 1 (LEFT) ENGINE FAILED DURING THE TAKEOFF FROM RUNWAY 35. IT WAS REPORTED THAT THE AIRCRAFT YAWED SHARPLY LEFT AND CLIMBED TO BETWEEN 50 AND 100 FEET AGL BEFORE IT BEGAN LOSING ALT. THE AIRCRAFT STRUCK THE GROUND AND CONTINUED TO MOVE FORWARD ON THE GROUND SEVERAL HUNDRED FEET UNTIL IT STRUCK THE AIRPORT PERIMETER FENCE. THE AIRCRAFT CAME TO REST 1,600 FEET WEST OF THE RUNWAY, ON A HEADING OF 290 DEGREES. A POST-CRASH FIRE DESTROYED THE CARGO AREA OF THE AIRCRAFT. EXAMINATION OF THE NO. 1 ENGINE REVEALED A COMPRESSOR TURBINE BLADE AIRFOIL SEPARATION. DISASSEMBLY OF THE PROPELLER ON THE NO. 1 ENGINE INDICATED THAT THE PROPELLER HAD AUTOFEATHERED NORMALLY AFTER THE ENGINE FAILED. THE CAPTAIN REPORTEDLY MADE THE TAKEOFF.

## Aircraft

- Registration: [N65DA](https://openairdocs.org/deregistered/N65DA-1995-05-18), registration cancelled 1995-05-18, S/N 110389 (OpenAirDocs)
- Reported make and model: EMBRAER EMB-110P
- Registry model: [Embraer EMB-110P1](https://openairdocs.org/model/embraer-emb-110p1) (registry code 3260122) (OpenAirDocs)
- Category: Airplane
- Serial number: 110389
- Airframe hours: 13005
- Engines: P&W PT6A-34 750 horsepower turbo prop
- Damage: Destroyed
- Fire: On-Ground
- Flight: Part 135
- Registered owner: Atlantic Southeast Airlines
- Airworthiness certificate: Standard, Normal
- Last inspection: Continuous airworthiness, May 11, 1988, 84 hours before
- Destination: DFW, FORT WORTH, TX
- Flight plan: IFR
- Airport: LAW, Lawton Munic, runway 35, 8,600 × 150 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 31; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; toxicology performed; flight hours: 2,333 total, 483 in this make and model, 1,883 as pilot in command, 294 in the last 90 days, 85 in the last 30 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 20° at 10 knots, gusting 18
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 79 °F
- Altimeter: 30.00 inHg
- Observed at: LAW

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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