- Date
- July 24, 1984, 20:00 local (Jul 25, 1984, 01:00 UTC)
- Place
- Chamerlain, SD
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N4593Grumman G-164A
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19840724038739A
- Case key
- 16442
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
The pilot experienced an engine failure and executed an emergency landing on a narrow road which resulted in one of the landing gear touching down on the soft shoulder. The landing gear failed and substantial damage resulted. Examination of the engine revealed that the cylinder seperated due to improperly torqued stud bolts which allowed an over stress condition to exist on a few studs that were properly torqued.
Aircraft
- Registration
- N4593
- Reported as
- Grumman G-164A
- Category
- Airplane
- Serial number
- 1082
- Airframe hours
- 3,575
- Engine
- P&W 985 AN-1, 450 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Registered owner
- Glenn John Mayer
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · March 3, 1984 · 37 hours before
- Departed
- CHB · Chamberlain, SD
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
- 36
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Center
- Flight hours
- 2,459 total · 610 in this make and model · 2,409 as pilot in command · 382 in the last 90 days · 3 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 135° at 4 knots
- Visibility
- 15 statute miles
- Lowest ceiling
- None
- Temperature
- 75 °F
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 N4593 · 2
Matched to the same aircraft by N-number and date.