- Date
- August 5, 1978
- Place
- Ft.Bridger, WY · FT.BRIDGER, WY
- Injuries
- 1 serious, 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N99DDDyke Delta JD11
- Status
- Completed · report October 12, 1978
- Report
- Brief approved by the director
- FAA report
- 19780805023819A
- Case key
- 139701
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
NTSB brief
NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.
---------------------------------------------------------------------------------------------------------------------------- FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA F S M/N PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 3-2688 78/8/5 FT.BRIDGER,WY DYKE DELTA JD11 CR- 0 1 0 NONCOMMERCIAL PRIVATE, AGE 47, 1395 TIME - 1145 N99DD PX- 0 0 1 PLEASURE/PERSONAL TRANSP TOTAL HOURS, 71 IN TYPE, DAMAGE-SUBSTANTIAL OT- 0 0 0 NOT INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION CHEYENNE,WY OGDEN,UT TYPE OF ACCIDENT PHASE OF OPERATION ENGINE FAILURE OR MALFUNCTION IN FLIGHT: NORMAL CRUISE WHEELS-UP LANDING: ROLL PROBABLE CAUSE(S) PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION POWERPLANT - EXHAUST SYSTEM: STACKS MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE FACTOR(S) TERRAIN - ROUGH/UNEVEN PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND REMARKS- EXHAUST MUFF BROKE LOOSE FROM FATIQUE ALLOWING HOT GAS TO ESCAPE AGAINST FIREWALL.
Aircraft
- Registration
- N99DD
- Reported as
- Dyke Delta JD11
- Category
- Airplane, amateur-built
- Engine
- reciprocating
- Damage
- Substantial damage
N99DDRegistration cancelled Sep 18, 2009 · Radford DYKE DELTA JD IIAirframe modelRadford DYKE DELTA JD IIEngine modelLycoming O&VO-360 series
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N99DD · 1
Matched to the same aircraft by N-number and date.