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Air Florida 90

Printed page 4. PDF page 9.

checklist, including verification of the takeoff engine pressure ratio (EPR) setting of 2.04 and indicated 4/ Air traffic control designation for New York Air. 5/ Chocks are blocks placed by tires to prevent a parked aircraft from moving---~also the designation
Open official document at PDF page 9NTSB AAR-82/08: Air Florida Boeing 737-222 N62AF

Air Florida 90

Printed page label not indexed. PDF page 16.

Engine power settings for Flight 90's takeoff from Washington National Airport were to be 2.04 EPR 11/ with air conditioning packs "off." Normal operating procedures for Air Florida require that air conditioning packs be off for takeoff. The following takeoff
Open official document at PDF page 16NTSB AAR-82/08: Air Florida Boeing 737-222 N62AF

Air Florida 90

Printed page label not indexed. PDF page 29.

engine was left unblocked. The throttles were set to achieve an EPR indicator reading of 2.04 on the engine having the blocked Pt, probe. The N,, Nj, EGT and F/F were read and the throttle on the engine with the
Open official document at PDF page 29NTSB AAR-82/08: Air Florida Boeing 737-222 N62AF

Air Florida 90

Printed page label not indexed. PDF page 31.

Engine Instrument Indication: Engine Instrument Indication: 1.70 EPR Pro probe blocked 2.04 EPR Engine anti-ice-Off Normal Operation Figure 6.-Comparison of Instrument Readings -- 1.70 EPR vs. 2.04 EPR.
Open official document at PDF page 31NTSB AAR-82/08: Air Florida Boeing 737-222 N62AF

Air Florida 90

Printed page label not indexed. PDF page 32.

response/feel for the configuration and weight of the accident aircraft. Thrust was set at 2.04 EPR. In their opinion, back yoke pressure was abnormally high during rotation; one unit of additional noseup trim (6 1/2 units total) was accepted as
Open official document at PDF page 32NTSB AAR-82/08: Air Florida Boeing 737-222 N62AF

Air Florida 90

Printed page label not indexed. PDF page 34.

demonstrated that with a blocked probe at takeoff, engine power can indicate an EPR of about 2.04 with the engine actually operating at an EPR ratio of 1.70. Under these circumstances, a pilot would unknowingly attempt takeoff at a considerably
Open official document at PDF page 34NTSB AAR-82/08: Air Florida Boeing 737-222 N62AF