- Date
- July 17, 1975
- Place
- Chicago, IL · CHICAGO, IL
- Injuries
- 359 uninjured
- Damage
- Minor damage
- Phase of flight
- Enroute
- Aircraft
- N4717UBoeing 747
- Status
- Completed · report August 19, 1975
- Report
- Brief approved by the director
- Case key
- 150389
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
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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 ---------------------------------------------------------------------------------------------------------------------------- 4-0008 75/7/17 CHICAGO,IL BOEING 747 CR- 0 0 17 SCHED DOM PASSG SRV AIRLINE TRANSPORT, AGE TIME - 1355 N4717U PX- 0 0342 UNK/NR, UNK/NR TOTAL DAMAGE-MINOR OT- 0 0 0 HOURS, UNK/NR IN TYPE, INSTRUMENT RATED. CLASSIFIED AS INCIDENT OPERATOR - UNITED AIR LINES,INC. DEPARTURE POINT INTENDED DESTINATION CHICAGO,IL HONOLULU,HI TYPE OF ACCIDENT PHASE OF OPERATION AIRFRAME FAILURE: IN FLIGHT IN FLIGHT: CLIMB TO CRUISE PROBABLE CAUSE(S) AIRFRAME - WINGS: SKIN AND ATTACHMENTS MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE FACTOR(S) MISCELLANEOUS - FOREIGN OBJECT DAMAGE MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT REMARKS- APRX 1/3 OF L WNG TRAILING EDGE PNL SEPD.RETURNED & LNDD OK.SHOE PRINTS VISIBLE ON FORE FLAP.
Aircraft
- Registration
- N4717U
- Reported as
- Boeing 747
- Category
- Airplane
- Engine
- turbo fan
- Damage
- Minor damage
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.
Other investigations on N4717U · 1
Matched to the same aircraft by N-number and date.