NTSB Identification: CHI88FA128.
The docket is stored on NTSB microfiche number 38044.
Scheduled 14 CFR
Accident occurred Sunday, June 05, 1988 in CHICAGO, IL
Probable Cause Approval Date: 08/07/1989
Aircraft: DORNIER 228-201, registration: N259MC
Injuries: 3 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE CAPT WAS COMPLETING THE CHECKLIST DRG PAX LOADING & THE F/O SECURED THE DOOR & CAME FWD. THE CAPT STARTED THE #2 ENG& BGN SINGLE ENG TAXI WHILE ATMTG A RGT TURN TO STAY CLR OF A PARKED DORNIER (N264MC). AS N259MC BGN ROLLING FWD, THE CAPT NOTED THE NOSEWHEEL STEERING (NWS) WAS INOP. HE APPLIED NORMAL BRAKING, BUT GOT NO RESPONSE & N259MC BGN A LEFT TURN. THE CAPT SWITCHED THE HYDR PUMP FM 'NORMAL' TO 'MAN ON' (MANUAL); HOWEVER, BFR HYD PRES WAS BUILT UP BY BATTERY PWR, N259MC COLLIDED WITH N264MC. AN INV REVEALED THE #2 GENERATOR (GEN) WAS NOT CONNECTED TO THE GEN BUS. NO PART MALFUNCTION/FAILURE WAS FND DRG CHECKS OF THE ACFT SYSTEMS. THE NWS & NORMAL BRAKES WERE ELECTRO-HYDRAULICALLY ACTUATED.W/O GENERATOR PWR, THE HYD SYS, NWS & NORMAL BRAKES WOULD NOT HAVE BEEN OPERATING WITH THE HYD SW IN THE 'NORMAL' PSN. AN EMERG (PARKING) BRAKE WAS AVAILABLE, BUT IT WAS NOT USED. THE TRAINING PROGRAM, OPN MANUAL & DORNIER 228-SERIES PILOT OPERATING HANDBOOK DID NOT ADDRESS SINGLE-ENG GROUND OPN OR THE EFFECTS OF AN INTERRUPTION IN GENERATOR PWR.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

HYDRAULIC SYSTEM..NOT ENGAGED

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

BRAKES(EMERGENCY)..NOT USED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

AIRCRAFT CONTROL..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

CREW/GROUP COORDINATION..INADEQUATE..PILOT IN COMMAND


Contributing Factors

ELECTRICAL SYSTEM,GENERATOR..NOT ENGAGED




Contributing Factors

AIRCRAFT MANUALS,SYSTEM INFORMATION..INADEQUATE


Contributing Factors

PROCEDURE INADEQUATE..MANUFACTURER


Contributing Factors

OBJECT..AIRCRAFT PARKED/STANDING

Index for Jun1988 | Index of months