- Date
- June 12, 1988, 22:17 local (Jun 13, 1988, 05:17 UTC)
- Place
- Seattle, WA
- Injuries
- 7 minor, 81 uninjured
- Damage
- Minor damage
- Phase of flight
- Landing
- Aircraft
- N308ASBoeing 727-200
- Weather
- Visual (VMC) · Night/dark
- Status
- Completed · report June 7, 1989
- Report
- Approved by Office Director
- FAA report
- 19880612029879I
- Case key
- 40743
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
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
After the main gear touched down, thrust levers were placed in the idle reverse position. Once the aircraft's nose gear contacted the runway, braking and full reverse thrust was applied. The aircraft started to drift to the left of the runway centerline. The pilot applied asymmetrical braking with no change in directional control. The pilot then combined the use of asymmetrical braking with asymmetrical reverse thrust. As a final effort to prevent the aircraft from departing the runway, the captain used the tiller. The aircraft came to rest on a grassy area between the parallel runways. The aircraft is equipped with 'lightweight' clamshell thrust reversers. The right hand thrust reverser on the number 2 engine was found failed in the open (forward thrust) position. Thrust reverser lights did not indicate any abnormalities. An overstress fracture of the lower inner hinge with a fatigue fracture through the flange of the upper outer hinge was found by metallurgical examination.
Aircraft
- Registration
- N308AS
- Reported as
- Boeing 727-200
- Category
- Airplane
- Serial number
- 227
- Engine
- P&W JT8D-17R, 16,400 horsepower, turbo fan
- Damage
- Minor damage
- Flight
- Part 121
- Operator
- Alaska Airlines, Inc.
- Registered owner
- United States Trust Co. Of Ny
- Airworthiness certificate
- Standard, Transport
- Last inspection
- 100 hour · May 31, 1988 · 98 hours before
- Departed
- PDX · Portland, OR
- Destination
- SEA · Seattle, WA
- Flight plan
- IFR
- Airport
- SEA · Seattle-Tacoma Int'L., runway 34R, 11,900 × 150 ft, asphalt
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
- 40
- Certificates
- Flight engineer, Commercial, 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
- 9,240 total · 7,803 in this make and model · 123 in the last 90 days · 53 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Night/dark
- Wind
- 30° at 11 knots
- Visibility
- 20 statute miles
- Lowest ceiling
- None
- Temperature
- 59 °F, dew point 48 °F
- Altimeter
- 30.00 inHg
- Observed at
- SEA
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.