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NTSB Report
February 17, 1984 · Mcdonnell Douglas DC-9-82 · N203AA
Santa Ana, CA
Overview
Report Status
Preliminary report
Event Type
Incident
Date
February 17, 1984
Injury Outcomes
No injuries (98 uninjured)
Location
Santa Ana, CA
Aircraft
Mcdonnell Douglas DC-9-82
Tail Number
N203AA
Injuries
None
NTSB Number
LAX84IA195
SHORTLY AFTER TAKEOFF A TTL PWR LOSS WAS EXPERIENCED ON THE NUMBER 1 ENGINE. EXAMINATION OF THE ENGINE REVEALED SUBSTANTIAL DAMAGE OCCURRED IN THE COMPRESSOR SECTION FROM STAGE 6 REARWARD. 40 STAGE 8 COMPRESSOR BLADES WERE FORCED COMPLETELY OUT OF THEIR DISK DOVETAIL SLOTS. OF THE 18 REMAINING BLADES, 17 WERE MISSING THEIR AIRFOILS WHICH HAD FRACTURED JUST ABOVE THE PLATFORM. THE 18TH BLADE WAS FRACTURED THROUGH THE ROOT AREA JUST BELOW THE PLATFORM. METALLURGICAL EXAMINATION OF THE 18TH BLADE DISCLOSED THE BLADE SUSTAINED A DIAGONAL AND TRANSVERSE FRACTURE THROUGH THE ROOT OF THR BLADE PROGRESSING IN HIGH CYCLE FATIGUE FROM THE ORIGIN ALONG THE EDGE OF THE DISK.
Full Narrative
SHORTLY AFTER TAKEOFF A TTL PWR LOSS WAS EXPERIENCED ON THE NUMBER 1 ENGINE. EXAMINATION OF THE ENGINE REVEALED SUBSTANTIAL DAMAGE OCCURRED IN THE COMPRESSOR SECTION FROM STAGE 6 REARWARD. 40 STAGE 8 COMPRESSOR BLADES WERE FORCED COMPLETELY OUT OF THEIR DISK DOVETAIL SLOTS. OF THE 18 REMAINING BLADES, 17 WERE MISSING THEIR AIRFOILS WHICH HAD FRACTURED JUST ABOVE THE PLATFORM. THE 18TH BLADE WAS FRACTURED THROUGH THE ROOT AREA JUST BELOW THE PLATFORM. METALLURGICAL EXAMINATION OF THE 18TH BLADE DISCLOSED THE BLADE SUSTAINED A DIAGONAL AND TRANSVERSE FRACTURE THROUGH THE ROOT OF THR BLADE PROGRESSING IN HIGH CYCLE FATIGUE FROM THE ORIGIN ALONG THE EDGE OF THE DISK.
Flight
Event TypeIncident
Event Time08:46 PST
Nearest AirportJohn Wayne (8nm N)
Runway1L
Runway Length5700 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftMcdonnell Douglas DC-9-82
Tail NumberN203AA
Aircraft CategoryAir
Operating RulePart 121
Engines2
Engine TypeTurbofan
Engine DetailsP&W · JT8D-217 · Turbofan · 20850
People & Injuries
Injury SummaryNo injuries (98 uninjured)
Fatal0
Serious0
Minor0
Uninjured98
Total98
Crew 1Unknown
Conditions
ConditionsVMC
LightDaylight
Wind360° @ 5 kt
Visibility40 sm
CeilingNone
Temperature / Dew Point57 / 0 C
Altimeter30.00 inHg
Observation Time08:45
Weather SourceWFAC