Aircraft Accident/Incident Report

Tampa, Florida 33622
Saturday, January 21, 1984 10:05 EST

NTSB Narrative Summary Released at Completion of Accident

WHILE CLIMBING AFTER TAKEOFF THRU ABOUT 3000 FT, THE CREW NOTED THAT THE #2 EPR HAD DROPPED ABOUT .08, FROM APRX 1.82 TO 1.74 EPR. SHORTLY AFTER THAT, THE 1ST OFFICER NOTED THAT THE AVM ON THE #2 ENG WAS AT THE MAX INDICATION. AT ABOUT 4000 FT, THERE WAS A LOUD EXPLOSIVE TYPE NOISE FROM THE REAR OF THE ACFT AS THE RIGHT ENG LOST POWER. THE CREW SECURED THE RIGHT ENG, RETURNED TO TAMPA & LANDED WITHOUT FURTHER INCIDENT. AN EXAM REVEALED THAT TURBINE BLADES HAD EXITED THE SIDE OF THE ENG TAILPIPE. TEARDOWN REVEALED THAT THE HIGH PRESSURE COMPRESSOR CENTER TUBE SEALING RING HAD AN APRX 1 IN (CIRCUMFERENTIAL) PIECE OF HARD SURFACE PLATING MISSING FROM THE OUTSIDE DIAMETER SEALING SURFACE. THIS FAILURE WAS IN AXIAL ALIGNMENT WITH A GAP IN THE REAR PISTON RING. NEITHER RING COMFORMED TO DESIGN SPECS. THERE WAS EVIDENCE THAT HOT AIR CAUSED COKING OF THE OIL. THE TURBINE SHAFT HAD FAILED APRX 13 INCHES FORWARD OF THE 4-1/2 BEARING. THE 4-1/2 BEARING SEALS WERE DAMAGED, 7 DISPLAYED COKE DEPOSITS. THE LOW PRESS TURBINE MOVED AFT INTERMESHING BLADES & STATORS.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Incident
Event Date 1/21/1984
Event Day of the Week Saturday
Time of Event 1005
Event Time Zone Eastern Standard Time
Event City TAMPA
Event State FLORIDA
Event Country --
Zipcode of the event site 33622
Event Date Year 1984
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1000 Eastern Standard Time
Direction of event from weather observation facility (degrees) 45
Weather Observation Facility ID PIE
Elevation of weather observation facility 27
Distance of event from weather observation facility (units?) 2
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 3000
Lowest Non-Ceiling Height 1100
Sky/Lowest/Cloud Conditions Thin Broken
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 5
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 20
Variable Wind Indicator Unknown
Wind Speed (knots) 17
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 33
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 5051
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 26008
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N401EA
NTSB Number MIA84IA064
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name DOUGLAS
Aircraft Model DC-9-51
Aircraft Series Identifier DC-9-51
Aircraft Serial Number 920VJ
Certified Max Gross Weight 122000
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 127
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection --
Airframe hours since last inspection 1284
Airframe Hours 23349
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name EASTERN AIRLINES INC.
Aircraft Owner Street Address MIAMI INT'L ARPT.
Aircraft Owner City MIAMI
Aircraft Owner State FL
Aircraft Owner Country
Aircraft Owner Zipcode 33148
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code EALA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger/Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code TPA
Departure City TAMPA
Departure State FL
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt --
Destination Airport Code ATL
Destination City ATLANTA
Destination State GA
Destination Country
Specific Phase of Flight Climb
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --