Narrative:

During climb out from msp, at approximately 12000 ft MSL, flight warning computer system issued 'hydraulic system #1 low quantity' alert. Hydraulic system #1 quantity went to zero. Also had intermittent 'engine #2 reverser' alert. Accomplished hydraulic system abnormal procedures per pilots handbook, declared emergency, coordinated with ATC for return to msp. Aircraft was 6000 pounds above maximum landing weight, so we elected to burn off fuel (no fuel dump capability on F100 to maximum landing weight. Upon reaching maximum landing weight, commenced approach and landing. Abnormal hydraulics required alternate flap and gear extension procedures, as well as loss of nosewheel steering, thrust reversers, speed brakes, and increased flight control forces. With emergency crash fire rescue equipment vehicles in place, landing accomplished uneventfully. Aircraft towed to gate. Subsequent maintenance found cracked hydraulic coupling. Although our company's pilots handbook is very good, it requires a good bit of flipping back and forth to locate the necessary multiple checklists to accomplish the hydraulic system #1 fail procedures. Reportedly, the company is working on a more user friendly 'quick reference' type checklist to address this problem. Having used this QRH type system at a previous carrier, I can attest to its superiority and wish I had one available to me during the aforementioned situation. Callback conversation with reporter revealed the following information: the reporter said that this was the first hydraulic problem that he has had with the F100 in the 6 yrs that he has been flying it. The procedure for handling the problem was correct, but required the flight crew to refer to a number of different sections in the QRH. He said that the handbook should have the complete procedure for each problem in a particular section of the handbook. The present handbook is well referenced, he said, but it was difficult to use because he had to keep turning to different sections to complete all of the hydraulic loss checklists. The reporter said that he has spoken to his chief pilot and the training department and they are aware of the problem and are attempting to correct it.

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Original NASA ASRS Text

Title: AN ACR FK10 FLC LOSES THE HYD FLUID ON THE #1 SYS WHEN A HYD COUPLING FAILS. THE FLC HAD SOME DIFFICULTY FOLLOWING THE EMER CHKLISTS FROM ONE PROC TO ANOTHER BECAUSE OF THE WAY THE QRH IS ARRANGED.

Narrative: DURING CLBOUT FROM MSP, AT APPROX 12000 FT MSL, FLT WARNING COMPUTER SYS ISSUED 'HYD SYS #1 LOW QUANTITY' ALERT. HYD SYS #1 QUANTITY WENT TO ZERO. ALSO HAD INTERMITTENT 'ENG #2 REVERSER' ALERT. ACCOMPLISHED HYD SYS ABNORMAL PROCS PER PLTS HANDBOOK, DECLARED EMER, COORDINATED WITH ATC FOR RETURN TO MSP. ACFT WAS 6000 LBS ABOVE MAX LNDG WT, SO WE ELECTED TO BURN OFF FUEL (NO FUEL DUMP CAPABILITY ON F100 TO MAX LNDG WT. UPON REACHING MAX LNDG WT, COMMENCED APCH AND LNDG. ABNORMAL HYDS REQUIRED ALTERNATE FLAP AND GEAR EXTENSION PROCS, AS WELL AS LOSS OF NOSEWHEEL STEERING, THRUST REVERSERS, SPD BRAKES, AND INCREASED FLT CTL FORCES. WITH EMER CFR VEHICLES IN PLACE, LNDG ACCOMPLISHED UNEVENTFULLY. ACFT TOWED TO GATE. SUBSEQUENT MAINT FOUND CRACKED HYD COUPLING. ALTHOUGH OUR COMPANY'S PLTS HANDBOOK IS VERY GOOD, IT REQUIRES A GOOD BIT OF FLIPPING BACK AND FORTH TO LOCATE THE NECESSARY MULTIPLE CHKLISTS TO ACCOMPLISH THE HYD SYS #1 FAIL PROCS. REPORTEDLY, THE COMPANY IS WORKING ON A MORE USER FRIENDLY 'QUICK REF' TYPE CHKLIST TO ADDRESS THIS PROB. HAVING USED THIS QRH TYPE SYS AT A PREVIOUS CARRIER, I CAN ATTEST TO ITS SUPERIORITY AND WISH I HAD ONE AVAILABLE TO ME DURING THE AFOREMENTIONED SIT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR SAID THAT THIS WAS THE FIRST HYD PROB THAT HE HAS HAD WITH THE F100 IN THE 6 YRS THAT HE HAS BEEN FLYING IT. THE PROC FOR HANDLING THE PROB WAS CORRECT, BUT REQUIRED THE FLC TO REFER TO A NUMBER OF DIFFERENT SECTIONS IN THE QRH. HE SAID THAT THE HANDBOOK SHOULD HAVE THE COMPLETE PROC FOR EACH PROB IN A PARTICULAR SECTION OF THE HANDBOOK. THE PRESENT HANDBOOK IS WELL REFED, HE SAID, BUT IT WAS DIFFICULT TO USE BECAUSE HE HAD TO KEEP TURNING TO DIFFERENT SECTIONS TO COMPLETE ALL OF THE HYD LOSS CHKLISTS. THE RPTR SAID THAT HE HAS SPOKEN TO HIS CHIEF PLT AND THE TRAINING DEPT AND THEY ARE AWARE OF THE PROB AND ARE ATTEMPTING TO CORRECT IT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.