- Date
- July 19, 1971
- Place
- Denver, CO · DENVER, CO
- Injuries
- 8 minor, 93 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N7020UBoeing 727
- Status
- Completed · report December 22, 1971
- Report
- Brief approved by the director
- Case key
- 161216
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 ---------------------------------------------------------------------------------------------------------------------------- 1-0015 71/7/19 DENVER,COLO BOEING 727 CR- 0 0 6 SCHED DOM PASSG SRV AIRLINE TRANSPORT, AGE TIME - 0936 N7020U PX- 0 0 95 43, 10500 TOTAL HOURS, DAMAGE-SUBSTANTIAL OT- 0 0 0 1694 IN TYPE, INSTRUMENT RATED. NAME OF AIRPORT - STAPLETON OPERATOR - UNITED AIR LINES,INC. DEPARTURE POINT INTENDED DESTINATION LAST ENROUTE STOP PHILADELPHIA,PA SAN FRANCISCO,CALIF DENVER,COLO TYPE OF ACCIDENT PHASE OF OPERATION GROUND-WATER LOOP-SWERVE LANDING: ROLL GEAR COLLAPSED LANDING: ROLL PROBABLE CAUSE(S) PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC. PILOT IN COMMAND - MISJUDGED SPEED PILOT IN COMMAND - IMPROPER OPERATION OF BRAKES AND/OR FLIGHT CONTROLS FACTOR(S) MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE SYSTEMS - ELECTRICAL SYSTEM: SWITCHES MISCELLANEOUS ACTS,CONDITIONS - OVERHEATED AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: WET RUNWAY EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT SUSPECTED MECHANICAL DISCREPANCY REMARKS- BOOST PUMP SWITCHES OVHTD.CREW MISTOOK SOURCE OF ODOR.TOOK WRONG ACTIONS.LND TOO FAST FOR RWY COND
Aircraft
- Registration
- N7020U
- Reported as
- Boeing 727
- Category
- Airplane
- Engine
- turbo fan
- Damage
- Substantial damage
- Airport
- Stapleton
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 N7020U · 1
Matched to the same aircraft by N-number and date.