# NTSB DEN83FA012: Cessna 310H, N1008Q, Broomfield, CO, November 7, 1982

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: November 7, 1982, 12:18 local (19:18 UTC)
- Place: Broomfield, CO
- Coordinates: 39.939617, -105.059143 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.9396&lon=-105.0591&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report November 7, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 70050
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN83FA012
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/70050/pdf
- Page: https://openairdocs.org/ntsb/DEN83FA012

## 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, approach - vfr pattern - final approach
  - engine assembly,cylinder - low compression (cause)
  - maintenance - not performed, company/operator management (cause)
- Loss of control - in flight, approach - vfr pattern - final approach
  - aircraft performance,engine out capability - deteriorated (contributing factor)
  - airspeed(vmc) - not maintained, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE ACFT WAS UNAIRWORTHY DUE TO LOW COMPRESSION ON TWO CYLINDERS ON THE LEFT ENG. A FERRY PERMIT WAS OBTAINED WHICH STIPULATES THAT THE ACFT BE AIRWORTHY FOR THE PROPOSED FLT. ACCORDING TO THE LEFT ENG LOGBOOK, THE LOW COMPRESSION PROBLEM WAS NOT CORRECTED PRIOR TO FLT. THE FLT WAS SEQUENCED INTO THE TRAFFIC PATTERN & REQUESTED TO REDUCE HIS AIRSPEED. THE PLT REPORTED ON A THREE MILE FINAL. APPROXIMATELY ONE MINUTE LATER THE FLT WAS CLEARED FOR LANDING. THE IMMEDIATE RESPONSE FROM THE PLT WAS THAT HE HAD JUST LOST THE LEFT ENG. A WITNESS OBSERVED THE ACFT ENTER A LEFT WING LOW, NOSE DOWN ATTITUDE & IMPACT THE GROUND. A COMPRESSION CHECK WAS PERFORMED ON THE LEFT ENG WITH THE FOLLOWING RESULTS: 35/80, 60/80, 10/80, 68/80, 0/80, & 60/80.

## Aircraft

- Registration: N1008Q (not matched to a registry record)
- Reported make and model: CESSNA 310H
- Category: Airplane
- Serial number: 310 H-0008
- Airframe hours: 4202
- Engines: CONTINENTAL IO-470-D 260 horsepower reciprocating
- Damage: Substantial damage
- Flight: Ferry, Part 91
- Registered owner: Jefferson Bank And Trust
- Departed: BOI, BOISE, ID
- Destination: TETERBORO, NJ
- Airport: BJC, Jefferson County, runway 11L, 7,498 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; airline transport, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; flight hours: 2,116 total, 22 in this make and model, 1,909 as pilot in command, 56 in the last 90 days, 1 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 70° at 7 knots
- Visibility: 30 statute miles
- Temperature: 86 °F
- Altimeter: 30.00 inHg

## 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 19821107070109A](https://openairdocs.org/incident/19821107070109A), Nov 7, 1982: Cessna 310H, Broomfield, CO, Substantial damage. Aircraft crashed during approach for landing after losing left engine. Ferry permit not complied with.

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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