- Date
- December 15, 1986, 19:27 local (Dec 16, 1986, 02:27 UTC)
- Place
- Salt Lake City, UT
- Injuries
- 4 uninjured
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N164SWSwearingen SA227AC
- Weather
- Instrument (IMC) · Night/dark
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19861215067589A
- Case key
- 40512
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 f/o was at the controls for the ILS apch to slc. Fog seeding was in progress, producing variable visibilities. The apch commenced with RVR well above cat I mins. At decision height(dh), the capt called 'lights in site'. The f/o continued the apch descent thru dh. The acft then reentered IMC and the capt called for missed apch. The f/o added pwr and established a wings level, 10 deg nose-up attitude on the gyro horizon as the capt executed check list items. The capt then noted the acft was heading 20 degs right of course and the right wing down attitude on his gyro horizon at which time he called 'turn left and pull up.' The acft left main landing gear contacted a 45 ft high ILS antenna stack 1049 ft down the rwy, 400 ft right of centerline. This separated the left main gear. The acft divereted to pih where additional damage was sustained during landing. Tests showed the f/o gryo horizon had bad bearings and the 'off' flag was inop. The f/o's altimeter also read 100 ft high.
Aircraft
- Registration
- N164SW
- Reported as
- Swearingen SA227AC
- Category
- Airplane
- Serial number
- 503
- Airframe hours
- 11,586
- Engine
- Garrett TPE-331, 1,000 horsepower, turbo prop
- Damage
- Substantial damage
- Flight
- Part 135
- Operator
- Skywest Airlines, Inc., doing business as Skywest Airlines/ Western Exp.
- Registered owner
- General Elec. Credit Corp.
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Continuous airworthiness · December 13, 1986 · 21 hours before
- Departed
- IDH · Idaho Falls, ID
- Destination
- SLC · Salt Lake City, UT
- Flight plan
- IFR
- Airport
- SLC · Salt Lake Int'L, runway 34L, 12,003 × 150 ft, asphalt
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 38
- Certificates
- Airline transport, Commercial, Flight instructor
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 8,993 total · 6,476 in this make and model · 8,953 as pilot in command · 277 in the last 90 days · 107 in the last 30 days · 7 in the last 24 hours
Weather
- Conditions
- Instrument (IMC) · Night/dark
- Wind
- Calm
- Lowest ceiling
- 200 ft
- Temperature
- 27 °F, dew point 25 °F
- Altimeter
- 30.00 inHg
- Observed at
- SLC
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.