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NTSB Report
June 5, 1984 · Boeing 720-025 · N8711E
Philadelphia, PA
Overview
Report Status
Preliminary report
Event Type
Incident
Date
June 5, 1984
Injury Outcomes
No injuries (95 uninjured)
Location
Philadelphia, PA
Aircraft
Boeing 720-025
Tail Number
N8711E
Injuries
None
NTSB Number
NYC84IA200
WHILE CLIMBING THRU 600 FT AFTER TAKEOFF, THE CREW HEARD A LOUD BANG, THE ACFT SHUTTERED & THE #3 ENG FIRE WARNING LIGHT ILLUMINATED. A FIRE BOTTLE WAS DISCHARGED. THE COPLT SAW FLAMES COMING FROM THE ENG & THE FIRE WARNING LIGHT REMAINED ILLUMINATED, SO A 2ND FIRE BOTTLE WAS DISCHARGED. THE AIRCREW RETURNED TO THE ARPT & LANDED WITHOUT FURTHER INCIDENT. EMERGENCY EQUIPMENT WAS STANDING BY & THE PASSENGERS DEPLANED NORMALLY. AN EXAM OF THE ENG REVEALED THAT THE 7TH STAGE TURBINE ASSEMBLY HAD FAILED, PENETRATING THE RIGHT SIDE OF THE CASE. THE 6TH & 8TH STAGES WERE DAMAGED BY THE DISPLACED 7TH STAGE ASSEMBLY. FUEL LINES & THE FIRE WARNING SYSTEM WERE ALSO DAMAGED.
Full Narrative
WHILE CLIMBING THRU 600 FT AFTER TAKEOFF, THE CREW HEARD A LOUD BANG, THE ACFT SHUTTERED & THE #3 ENG FIRE WARNING LIGHT ILLUMINATED. A FIRE BOTTLE WAS DISCHARGED. THE COPLT SAW FLAMES COMING FROM THE ENG & THE FIRE WARNING LIGHT REMAINED ILLUMINATED, SO A 2ND FIRE BOTTLE WAS DISCHARGED. THE AIRCREW RETURNED TO THE ARPT & LANDED WITHOUT FURTHER INCIDENT. EMERGENCY EQUIPMENT WAS STANDING BY & THE PASSENGERS DEPLANED NORMALLY. AN EXAM OF THE ENG REVEALED THAT THE 7TH STAGE TURBINE ASSEMBLY HAD FAILED, PENETRATING THE RIGHT SIDE OF THE CASE. THE 6TH & 8TH STAGES WERE DAMAGED BY THE DISPLACED 7TH STAGE ASSEMBLY. FUEL LINES & THE FIRE WARNING SYSTEM WERE ALSO DAMAGED.
Flight
Event TypeIncident
Event Time13:12 EDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledIFR
Aircraft FireIflt
Aircraft ExplosionNo
Aircraft
AircraftBoeing 720-025
Tail NumberN8711E
Aircraft CategoryAir
Operating RulePart 91
Engines4
Engine TypeTurbofan
Engine DetailsP&W · JT3C-7 · Turbofan · 12000
Seats102
People & Injuries
Injury SummaryNo injuries (95 uninjured)
Fatal0
Serious0
Minor0
Uninjured95
Total95
Crew 1Age 61 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind230° @ 7 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter30.00 inHg
Observation Time16:50
Weather SourceWFAC