- Date
- March 20, 1989, 21:30 local (Mar 21, 1989, 02:30 UTC)
- Place
- Bismark, ND
- Injuries
- 1 uninjured
- Damage
- No damage
- Phase of flight
- Initial climb
- Aircraft
- N690MFGulfstream 690A
- Weather
- Visual (VMC) · Night/dark
- Status
- Completed · report August 26, 1992
- Report
- Approved by Office Director
- FAA report
- 19890320014949I
- Case key
- 34704
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
On this page
Probable cause
A failed (cracked) engine plenum resulting in loss of engine power.
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
While climbing after takeoff at night, the right engine failed. The fight crew secured the right engine & returned to a safe landing at the airport. An engine inspection revealed a crack in the plenum combustor chamber. The crack eminated from a weld between two externally fixed (welded) mounts. This was the second plenum chamber used on this engine in six months and was obtained from spare parts of another aircraft. It was visually determined to be airworthy. No operational history was available on this plenum, nor was there a specific requirement. Replacement was on condition, and damage conditions were required to meet the manufacturers criteria.
Aircraft
- Registration
- N690MF
- Reported as
- Gulfstream 690A
- Category
- Airplane
- Serial number
- 11103
- Airframe hours
- 6,565
- Engine
- Garrett TPE331-5-251K, 717 horsepower, turbo prop
- Damage
- No damage
- Flight
- Part 135
- Registered owner
- Greatwestern Aviation
- Airworthiness certificate
- Standard, Normal
- Last inspection
- AAIP · March 10, 1989 · 28 hours before
- Destination
- FAR · Fargo, ND
- Flight plan
- IFR
- Airport
- BIS · Bismarck Muni
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 27
- Certificate
- Airline transport
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 5,596 total · 384 in this make and model · 5,416 as pilot in command · 255 in the last 90 days · 85 in the last 30 days · 3 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Night/dark
- Wind
- 200° at 7 knots
- Visibility
- 12 statute miles
- Temperature
- 19 °F, dew point 10 °F
- Altimeter
- 30.00 inHg
- Observed at
- BIS
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.