- Date
- July 1, 1988, 12:35 local (18:35 UTC)
- Place
- Englewood, CO
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N250THHelfrich-Leonard BD-5B
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 10, 1989
- Report
- Approved by Office Director
- FAA report
- 19880701035799A
- Case key
- 17330
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
This experimental acft is powered by a modified honda 1250 cc, watercooled eng. The plt reported that after takeoff the eng temp reached the redline and the eng lost power. During the forced landing the main landing gear collapsed. Examination of the eng after the acdt revealed that a hole was burned in the #4 piston and a portion of the head gasket between the #3 and #4 cyl was missing. The owner and technicians familiar with the eng suggest a larger radiator, retiming of the ignition, and/or a richer mixture may preclude recurrence of the problem.
Aircraft
- Registration
- N250TH
- Reported as
- Helfrich-Leonard BD-5B
- Category
- Airplane, amateur-built
- Serial number
- 1032
- Airframe hours
- 311
- Engine
- Honda 1250, 70 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Foster Mark E.
- Registered owner
- Mark E. Foster
- Airworthiness certificate
- Special, Experimental (Special)
- Departed
- APA
- Destination
- APA
- Airport
- APA · Centennial
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.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 39
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Center
- Flight hours
- 1,272 total · 20 in this make and model · 1,145 as pilot in command
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 20° at 5 knots
- Visibility
- 50 statute miles
- Lowest ceiling
- None
- Temperature
- 79 °F
- Altimeter
- 30.00 inHg
- Observed at
- APA
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 N250TH · 1
Matched to the same aircraft by N-number and date.