# NTSB DEN88LA005: Rockwell 690B, N711TT, Albuquerque, NM, October 8, 1987

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: October 8, 1987, 16:15 local (22:15 UTC)
- Place: Albuquerque, NM
- Location: 35.0845° N, 106.6511° W: Placed by OpenAirDocs: center of Albuquerque, NM, within about 8 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.0845&lon=-106.6511&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 uninjured
- Status: Completed, report October 6, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 17400
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN88LA005
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17400/pdf
- Page: https://openairdocs.org/ntsb/DEN88LA005

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - airspeed(vref) - excessive, pilot in command (contributing factor)
  - directional control - not maintained, pilot in command (cause)
  - planned approach - poor, pilot in command (contributing factor)
- On ground/water collision with object, landing - roll
  - object - runway light (contributing factor)
- Gear collapsed, landing - roll

## Analysis

ACFT WAS LANDING ON RWY 17 AT CORONADO AIRPORT, 9 NM N OF ALBUQUERQUE, NM INTL ARPT. PLT SAID HE BROUGHT PROPS INTO REVERSE AND ACFT WENT OFF RIGHT SIDE OF RWY. PLT BROUGHT PROPS OUT OF REVERSE, REALIGNED ACFT ON RWY, AND REVERSED PROPS AGAIN. ACFT WENT OFF RIGHT SIDE OF RWY AND COLLIDED WITH RWY LIGHTS AND CULVERTS. RIGHT MAIN AND NOSE LANDING GEARS COLLAPSED. WITNESSES SAID APCH WAS TOO FAST WITH HIGH SINK RATE THAT WAS ARRESTED IN LANDING FLARE. PLT SAID HE DID NOT THINK THERE HAD BEEN ANY MECHANICAL FAILURE OR MALFUNCTION, BUT LATER WROTE HE THOUGHT LEFT PROP FAILED TO REVERSE. EXAM OF ACFT REVEALED BOTH PROP BLADE TIPS CURLED OPPOSITE DIRECTION OF ROTATION ABOUT 6 IN FROM TIP.

## Aircraft

- Registration: [N711TT](https://openairdocs.org/deregistered/N711TT-2013-06-07), registration cancelled 2013-06-07, S/N 11362, built 1976 (OpenAirDocs)
- Reported make and model: ROCKWELL 690B
- Registry model: [Rockwell International 690B](https://openairdocs.org/model/rockwell-international-690b) (registry code 7630516) (OpenAirDocs)
- Registry engine: [AiResearch TPE331-5&6SER](https://openairdocs.org/engine/airesearch-tpe331-5-6ser) (registry code 01515, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 11362
- Airframe hours: 1829
- Engines: GARRETT TPE331-5-251K 718 horsepower turbo prop
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Ada Aircraft Museum
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, March 26, 1987, 40 hours before
- Departed: 2DT, OKLAHOMA CITY, OK
- Flight plan: IFR
- Airport: 4AC, Coronado, runway 17, 4,010 × 60 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 67; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 7,230 total, 1,086 in this make and model, 7,230 as pilot in command, 30 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 21 knots
- Visibility: 60 statute miles
- Lowest ceiling: none
- Temperature: 84 °F, dew point 19 °F
- Altimeter: 30.00 inHg
- Observed at: ABQ, 9 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 19871008059079A](https://openairdocs.org/incident/19871008059079A), Oct 8, 1987: Gulstm 690B, Albuquerque, NM, Destroyed. Lost directional control on rollout veered off runway. Struck runway lights and a culvert. Wind south per FBO.

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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