A B727-200 CARGO FLT FAILS TO MAKE A NOISE ABATEMENT PROC ALT RESTR ON A HOT EVENING 8 MI S OF ORD; IL.

Date: 2000-08 · Aircraft: B727-200 · Phase: climb

Anomalies: deviation-altitude-crossing-restriction-not-met|deviation-altitude-undershoot|deviation-discrepancy-procedural-clearance|deviation-discrepancy-procedural-published-material-policy|inflight-event-encounter-bird-animal|other-acft-performance

Synopsis

A B727-200 CARGO FLT FAILS TO MAKE A NOISE ABATEMENT PROC ALT RESTR ON A HOT EVENING 8 MI S OF ORD; IL.

Narrative

PROB: DID NOT MEET NOISE ABATEMENT XING RESTR ON 'O'HARE ONE' SID. SUPPOSED TO CROSS 8 DME AT OR ABOVE 4000 FT TO MAINTAIN 5000 FT IN OUR SECTOR. DID NOT MAKE IT TO 4000 FT UNTIL ABOUT 10.5 DME. DID NOT THINK THERE WOULD BE A PROB SO DID NOT ADVISE ATC PRIOR TO DEP. BACKGROUND: WE HAD BEEN FLYING THIS TRIP ALL WEEK THAT WENT ORD-IND-ORD EACH NIGHT. IN FIRST 2 DAYS HAD ALREADY DONE THE TRIP 3 TIMES; IN 3 DIFFERENT BOEING 727 CONFIGNS. THIS WAS LAST TRIP OF THE WEEK (OUR 5TH TIME). WE HAD A LONGER THAN USUAL TAXI AND WAIT FOR TKOF. CONTRIBUTING FACTORS: RWY 22L IS SHORTER THAN OTHER NORMAL DEP RWYS. VERY WARM/HUMID NIGHT (HIGH DENSITY ALT). VERY HVY FOR THIS TKOF. IN A STRETCHED B727 WITH THE LEAST THRUST ENGS/AIRFRAME IN OUR FLEET USED NON STANDARD TKOF FLAP CONFIGN OF 20 DEGS VERSUS 15 DEGS TO INCREASE REJECT/STOP MARGIN WHICH WAS ONLY 1610 FT WITH 15 DEG FLAPS. OUR COMPANY HAS A STRICT REDUCED THRUST TKOF PROGRAM. THEY WOULD RATHER YOU USE ALTERNATIVES TO SITS THAT WOULD OTHERWISE DICTATE MAX PWR/TKOFS. OUR COMPANY ALSO HAS A VERY STRICT QUIET CLB PROFILE PROGRAM REQUIRING A SIGNIFICANT REDUCTION IN THRUST AT 1000 FT AGL; LASTING UNTIL 3000 FT AGL. MANY PRIOR DEPS GAVE US NO REASON FOR CONCERN ABOUT RESTRS. DISTRACTIONS: UPON ACCEPTING TKOF CLRNC ATC GAVE A DISCLAIMER TO EVERYONE ABOUT A DOG ON THE RWY. WE SEARCHED AND FOUND IT PRIOR TO DEPARTING. AS MENTIONED ON ATIS WARNINGS; WE HAD A BIRD STRIKE ON THE NOSE CLBING THROUGH APPROX 2500 FT MSL WHICH CAPTURED OUR ATTN. AT THE SAME TIME; THERE AROSE A CONCERN ABOUT THE #1 CSD (TEMP WAS USUALLY LOW ALONG WITH SLIGHT VIBRATION IN #1 THROTTLE). IF ACCOMPANIED WITH STRONG VIBRATION IN THAT ENGS START LEVER; IT COULD BE INDICATIVE OF IMPENDING CSD LOSS. I'VE PERSONALLY SEEN THAT HAPPEN TWICE IN THE TKOF/CLB/HIGH THRUST REGIME. CONCLUSION: IN SPITE OF MAINTAINING BEST ANGLE OF CLB SPD AFTER FLAP RETRACTION; AND WITH THE DISTRACTIONS PRIOR TO 4000 FT AND 8 DME FROM THE VOR; WE DID NOT MEET THE RESTR. ATC NOTIFIED US OF SUCH (AND TO BE AWARE OF IT TO A GREATER DEGREE IN THE FUTURE) AT APPROX 11 DME. RECOMMENDATIONS: USING OUR COMPANY'S REDUCED PWR TKOF AND QUIET CLB PROFILE; IN CONJUNCTION WITH O'HARE'S NOISE ABATEMENT RESTRS (COMBINED WITH THE FACTORS LISTED) DOES NOT WORK. YOU NEED TO USE A MAX PWR TKOF AND/OR AN OBSTACLE CLRNC CLB PROFILE (OUR 'PROFILE A') TO MEET THE 8 DME AT 4000 FT RESTR IN A LOWER THRUST; STRETCHED B727; IN HIGHER THAN USUAL DENSITY ALT; WHEN DEPARTING RWY 22L.

More incidents for this aircraft family →

Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.