- Date
- May 4, 1986, 18:07 local (May 5, 1986, 00:07 UTC)
- Place
- Almosa, CO
- Injuries
- 2 serious, 50 uninjured
- Damage
- No damage
- Phase of flight
- Enroute
- Aircraft
- N28SWBoeing 737-200
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19860504038099I
- Case key
- 16818
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.
In flight encounter with weather
Weather condition - mountain waveCause
Weather condition - turbulenceCause
Weather condition - downdraftCause
Seat belt sign - selected
Seat belt - delayedFactor
Unsafe/hazardous condition - not identifiedFactor
Unsafe/hazardous condition warning - not issuedFactor
Analysis
A southwest airline company Boeing 737, flt no. 558 en route from denver, Colorado, to albuquerque, new Mexico, at FL 350, encountered severe clear air turbulence. The unexpected wx phenomena caused the acft to 'drop' suddenly resulting in two flt attendants being injured. After the acft was again brought back to level flt the rest of the flt was uneventful.
Aircraft
- Registration
- N28SW
- Reported as
- Boeing 737-200
- Category
- Airplane
- Serial number
- 22730
- Engine
- P&W JT8-9, 14,500 lbs thrust, turbo fan
- Damage
- No damage
- Flight
- Part 121
- Registered owner
- Southwest Airlines Co.
- Airworthiness certificate
- Standard, Normal
- Departed
- DEN · Denver, CO
- Destination
- ABQ · Albuquerque, NM
- Flight plan
- IFR
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 39
- Certificate
- Airline transport
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 9,050 total · 4,950 in this make and model · 8,500 as pilot in command · 220 in the last 90 days · 80 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 210° at 20 knots
- Visibility
- 40 statute miles
- Lowest ceiling
- None
- Temperature
- 59 °F, dew point 9 °F
- Altimeter
- 29.00 inHg
- Observed at
- ALS
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.