B757 first officer reports being distracted by runway changes during the arrival to ord and omitting...

Attributes
ACN	739725
Time
Date	200705
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ord.airport
State Reference	IL
Altitude	msl single value : 3000
Aircraft 1
Controlling Facilities	tower : ord.tower
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 140 flight time total : 11500 flight time type : 4730
ASRS Report	739725
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : far non adherence : company policies
Independent Detector	other flight crewa other other : 3
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Passenger Human Performance Flight Crew Human Performance Cabin Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

The 'approach descent checklist' was complete as we approached FL180. At FL180 the captain instructed me to turn on the seatbelt sign and I followed that with my standard seatbelt sign announcement. We were on the bdf arrival briefed and expecting runway 27L at ord. We checked in with chicago approach and they told us to stand by for a runway assignment. After several minutes we were assigned runway 22R. The captain instructed me to install the runway 22R approach and set up the navaids. After briefing the approach; the controller came back with a new runway assignment to runway 27R. Once again I installed the new approach and the captain briefed the pertinent changes. The rest of the approach was uneventful until at 7 NM final the captain called for gear down and for the 'final checklist'. I put the gear down and reached for the checklist and began to accomplish the checklist when I realized I had not given the 'prepare for landing' announcement to the flight attendants. I selected the PA to make the announcement and the flight attendants were performing their prepare for landing PA announcement. Upon hearing this I made the decision to omit the call on the PA because they were already performing their final checks. I felt I would delay their preparations if I interrupted their announcement by broadcasting over them. I then completed the rest of the 'final checklist.' the rest of the approach and landing were uneventful. After the passenger had deplaned the flight attendant advised the captain that there was a passenger in the aft lav during the landing. What did I learn: the multiple runway assignments got me out of my normal rhythm of when I complete the 'prepare for landing' PA. I usually accomplish this between 7000 ft and 5000 ft. I also should have made the prepare for landing PA overtop of the flight attendants completing their final PA announcement. I felt rushed as we approached the final approach fix and felt it was more important to help the captain with the landing. I made a choice based the basic priorities: aviate; navigate; communicate.

Original NASA ASRS Text

Title: B757 FO RPTS BEING DISTRACTED BY RWY CHANGES DURING THE ARR TO ORD AND OMITTING THE PA TO THE CABIN TO PREPARE FOR LNDG. FLT ATTENDANT RPTS THAT A PAX WAS IN THE LAV FOR THE LNDG.

Narrative: THE 'APPROACH DESCENT CHECKLIST' WAS COMPLETE AS WE APCHED FL180. AT FL180 THE CAPT INSTRUCTED ME TO TURN ON THE SEATBELT SIGN AND I FOLLOWED THAT WITH MY STANDARD SEATBELT SIGN ANNOUNCEMENT. WE WERE ON THE BDF ARR BRIEFED AND EXPECTING RWY 27L AT ORD. WE CHECKED IN WITH CHICAGO APCH AND THEY TOLD US TO STAND BY FOR A RWY ASSIGNMENT. AFTER SEVERAL MINUTES WE WERE ASSIGNED RWY 22R. THE CAPT INSTRUCTED ME TO INSTALL THE RWY 22R APCH AND SET UP THE NAVAIDS. AFTER BRIEFING THE APCH; THE CTLR CAME BACK WITH A NEW RWY ASSIGNMENT TO RWY 27R. ONCE AGAIN I INSTALLED THE NEW APCH AND THE CAPT BRIEFED THE PERTINENT CHANGES. THE REST OF THE APCH WAS UNEVENTFUL UNTIL AT 7 NM FINAL THE CAPT CALLED FOR GEAR DOWN AND FOR THE 'FINAL CHECKLIST'. I PUT THE GEAR DOWN AND REACHED FOR THE CHECKLIST AND BEGAN TO ACCOMPLISH THE CHECKLIST WHEN I REALIZED I HAD NOT GIVEN THE 'PREPARE FOR LANDING' ANNOUNCEMENT TO THE FLT ATTENDANTS. I SELECTED THE PA TO MAKE THE ANNOUNCEMENT AND THE FLT ATTENDANTS WERE PERFORMING THEIR PREPARE FOR LANDING PA ANNOUNCEMENT. UPON HEARING THIS I MADE THE DECISION TO OMIT THE CALL ON THE PA BECAUSE THEY WERE ALREADY PERFORMING THEIR FINAL CHECKS. I FELT I WOULD DELAY THEIR PREPARATIONS IF I INTERRUPTED THEIR ANNOUNCEMENT BY BROADCASTING OVER THEM. I THEN COMPLETED THE REST OF THE 'FINAL CHECKLIST.' THE REST OF THE APCH AND LNDG WERE UNEVENTFUL. AFTER THE PAX HAD DEPLANED THE FLT ATTENDANT ADVISED THE CAPT THAT THERE WAS A PAX IN THE AFT LAV DURING THE LNDG. WHAT DID I LEARN: THE MULTIPLE RWY ASSIGNMENTS GOT ME OUT OF MY NORMAL RHYTHM OF WHEN I COMPLETE THE 'PREPARE FOR LANDING' PA. I USUALLY ACCOMPLISH THIS BETWEEN 7000 FT AND 5000 FT. I ALSO SHOULD HAVE MADE THE PREPARE FOR LNDG PA OVERTOP OF THE FLT ATTENDANTS COMPLETING THEIR FINAL PA ANNOUNCEMENT. I FELT RUSHED AS WE APCHED THE FINAL APCH FIX AND FELT IT WAS MORE IMPORTANT TO HELP THE CAPT WITH THE LNDG. I MADE A CHOICE BASED THE BASIC PRIORITIES: AVIATE; NAVIGATE; COMMUNICATE.

Data retrieved from NASA's ASRS site as of January 2009 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.

B757 first officer reports being distracted by runway changes during the arrival to ord and omitting the PA to the cabin to prepare for landing. Flight attendant reports that a passenger was in the lav for the landing.