CHI72AC045

NTSB accident investigation · Boeing 727 · Milwaukee, WI · November 17, 1971

Accident · No injuriesClosed
Date
November 17, 1971
Place
Milwaukee, WI · MILWAUKEE, WI
Injuries
36 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N7077UBoeing 727
Status
Completed · report January 4, 1973
Report
Brief approved by the director
Case key
164534

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

NTSB brief

NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.

----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0047  71/11/17 NR.MILWAUKEE,WIS      BOEING 727          CR-  0  0  6  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 0810                    N7077U              PX-  0  0 30                            52, 21606 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            3800 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        OPERATOR - UNITED AIR LINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
         MILWAUKEE,WIS                NEW YORK,NY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: CLIMB TO CRUISE
           FIRE OR EXPLOSION: IN FLIGHT                             IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           POWERPLANT - COMPRESSOR ASSEMBLY: DISC, COMPRESSOR ROTOR
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
        REMARKS- 8TH STAGE COMPRESSOR DISC,NR 2 ENG,FAILED FOR UNDETERMINED REASON. DEBRIS DMGD VERT STAB & HYD SYS

Aircraft

Registration
N7077U
Reported as
Boeing 727
Category
Airplane
Engine
turbo fan
Damage
Substantial damage