- Date
- January 21, 1982, 08:56 local (15:56 UTC)
- Place
- Boise, ID
- Injuries
- 4 fatal
- Damage
- Destroyed
- Phase of flight
- Enroute
- Aircraft
- N4947KCessna P210N
- Weather
- Instrument (IMC) · Day
- Status
- Completed · report January 21, 1983
- Report
- Approved by Office Director
- Safety recommendations
- Yes
- FAA report
- 19820121001649A
- Case key
- 69994
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Analysis
After takeoff while climbing through 10,000 ft MSL the pilot declared an emergency. The pilot stated he was having vacuum problems and was on partial panel. Salt lake city ARTCC answered his request for guidance to a VFR landing with no gyro vector instructions back to Boise. The pilot then stated he had a problem with the turn coordinator and that the vacuum pump was not operating. At 0856 the aircraft disappeared from the salt lake city ARTCC and Boise approach control radar scopes. No further radio contact was made with the aircraft. The wreckage was found 18 miles se of Boise after having impacted the ground at a near vertical angle, striking the nose and left wing first. Examination of the dry air vacuum pump revealed preimpact failure damage.
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.
Aircraft
- Registration
- N4947K
- Reported as
- Cessna P210N
- Category
- Airplane
- Serial number
- 00379
- Airframe hours
- 947
- Engine
- Continental TSIO-520P, 285 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Personal · Part 91
- Operator
- Howard E Johnson
- Registered owner
- Howard E Johnson
- Departed
- BOI · Boise, ID
- Destination
- VGT · North Las Vegas, NV
- Flight plan
- IFR
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
- 50
- Certificate
- Commercial
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Flight hours
- 2,502 total · 36 in this make and model · 2,450 as pilot in command · 18 in the last 90 days
Weather
- Conditions
- Instrument (IMC) · Day
- Wind
- 310° at 5 knots
- Visibility
- 1 statute miles
- Temperature
- 66 °F
- Altimeter
- 29.00 inHg
- Observed at
- BOI, 18 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.