Narrative:

After several minor maintenance problems, I was late taxiing my fgt to join my flight of 3 fgts taxiing for takeoff at R-6 air force base. 'Code 1' was the leader. I listened to ATIS and heard 29.87 as the altitude setting. I set .87 in the altimeter and pressed on. Unknown to me (and not noticed by me) was that someone had zeroed out the altimeter (QFE, I believe) so, when I set .87, I had 28.87 set. The needle pointed to near the 100 scale (elevation 1100) so at a quick glance it looked normal when in fact it was reading only 100 ft not 1100 ft. I took off as 'code 2,' joined up with the leader. He quickly aborted for an engine problem and gave me the lead. When I assumed the squawk, departure control asked what my altitude was. I said 5500 ft (really 6500 ft MSL). We had been cleared to only 6000 ft. Code 3 told me to check my altimeter and then I noticed the 28.87. Fortunately, I was VFR and not shooting any IFR approachs. Solution: if someone sets QFE, return altimeter to approximately field elevation. You can bet I check my setting more closely now, even if I'm in a hurry to get airborne.

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Original NASA ASRS Text

Title: FGT PLT USES WRONG ALTIMETER SETTING, 1000 FT LOW. LEVELS OFF WRONG ALT. ALTDEV ALT OVERSHOT.

Narrative: AFTER SEVERAL MINOR MAINT PROBLEMS, I WAS LATE TAXIING MY FGT TO JOIN MY FLT OF 3 FGTS TAXIING FOR TKOF AT R-6 AIR FORCE BASE. 'CODE 1' WAS THE LEADER. I LISTENED TO ATIS AND HEARD 29.87 AS THE ALT SETTING. I SET .87 IN THE ALTIMETER AND PRESSED ON. UNKNOWN TO ME (AND NOT NOTICED BY ME) WAS THAT SOMEONE HAD ZEROED OUT THE ALTIMETER (QFE, I BELIEVE) SO, WHEN I SET .87, I HAD 28.87 SET. THE NEEDLE POINTED TO NEAR THE 100 SCALE (ELEVATION 1100) SO AT A QUICK GLANCE IT LOOKED NORMAL WHEN IN FACT IT WAS READING ONLY 100 FT NOT 1100 FT. I TOOK OFF AS 'CODE 2,' JOINED UP WITH THE LEADER. HE QUICKLY ABORTED FOR AN ENG PROBLEM AND GAVE ME THE LEAD. WHEN I ASSUMED THE SQUAWK, DEP CTL ASKED WHAT MY ALT WAS. I SAID 5500 FT (REALLY 6500 FT MSL). WE HAD BEEN CLRED TO ONLY 6000 FT. CODE 3 TOLD ME TO CHK MY ALTIMETER AND THEN I NOTICED THE 28.87. FORTUNATELY, I WAS VFR AND NOT SHOOTING ANY IFR APCHS. SOLUTION: IF SOMEONE SETS QFE, RETURN ALTIMETER TO APPROX FIELD ELEVATION. YOU CAN BET I CHK MY SETTING MORE CLOSELY NOW, EVEN IF I'M IN A HURRY TO GET AIRBORNE.

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.