Experienced in aircraft type, captain had more wing roll around the longitudinal axis of the aircraf...

Attributes
ACN	368534
Time
Date	199705
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mot
State Reference	ND
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	other other : other pilot : commercial pilot : atp pilot : instrument pilot : flight engineer
Experience	flight time last 90 days : 210 flight time total : 16000 flight time type : 10000
ASRS Report	368534
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	inflight encounter : weather other anomaly other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : regained aircraft control
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

Wind 320 degrees at 22 KTS gusting to 32 KTS. Aircraft was in stabilized approach from 1500 ft AGL to landing. Landing was soft/gentle. Left main gear touched first, followed by right gear (even more gentle than left). Ground spoilers did not deploy immediately. Prior to ground spoilers, a wind gust lifted right wing (right main gear still seemed on the ground). Left wing went down in reaction to right wing up. Pilot corrected to wings level, while ground spoilers deployed. Remainder of landing/rollout was normal. After landing, I commented to first officer, 'that is how you get a wingtip.' (I have never gotten one, but I had a hunch.) first officer replied that the roll was not significant enough to get a wingtip. I asked him how many degrees roll he felt we had. He said no greater than 5 degrees. (The afm says this aircraft could scrape a wingtip at approximately 8 degrees roll.) postflt inspection confirmed no wingtip damage. Regardless of the uneventful outcome, I tend to ponder flying events long after they are over -- I think most of us do. We try to learn from each trip, eventful or not. Conclusion: a firm (not hard) landing, resulting in immediate ground spoilers deployment would probably have prevented the wing rock. This approach required a lot of work all the way to the ground but the touchdown was too gentle (I guess I worked too hard). I have a lot of time in this aircraft. I am still trying to get it right all the time.

Original NASA ASRS Text

Title: EXPERIENCED IN ACFT TYPE, CAPT HAD MORE WING ROLL AROUND THE LONGITUDINAL AXIS OF THE ACFT DURING LNDG IN STRONG GUSTY WINDS THAN ANTICIPATED. HE WAS CONCERNED THAT HE HAD STRUCK A WINGTIP, BUT SUBSEQUENT ACFT INSPECTION DID NOT SHOW ANY SCRAPING.

Narrative: WIND 320 DEGS AT 22 KTS GUSTING TO 32 KTS. ACFT WAS IN STABILIZED APCH FROM 1500 FT AGL TO LNDG. LNDG WAS SOFT/GENTLE. L MAIN GEAR TOUCHED FIRST, FOLLOWED BY R GEAR (EVEN MORE GENTLE THAN L). GND SPOILERS DID NOT DEPLOY IMMEDIATELY. PRIOR TO GND SPOILERS, A WIND GUST LIFTED R WING (R MAIN GEAR STILL SEEMED ON THE GND). L WING WENT DOWN IN REACTION TO R WING UP. PLT CORRECTED TO WINGS LEVEL, WHILE GND SPOILERS DEPLOYED. REMAINDER OF LNDG/ROLLOUT WAS NORMAL. AFTER LNDG, I COMMENTED TO FO, 'THAT IS HOW YOU GET A WINGTIP.' (I HAVE NEVER GOTTEN ONE, BUT I HAD A HUNCH.) FO REPLIED THAT THE ROLL WAS NOT SIGNIFICANT ENOUGH TO GET A WINGTIP. I ASKED HIM HOW MANY DEGS ROLL HE FELT WE HAD. HE SAID NO GREATER THAN 5 DEGS. (THE AFM SAYS THIS ACFT COULD SCRAPE A WINGTIP AT APPROX 8 DEGS ROLL.) POSTFLT INSPECTION CONFIRMED NO WINGTIP DAMAGE. REGARDLESS OF THE UNEVENTFUL OUTCOME, I TEND TO PONDER FLYING EVENTS LONG AFTER THEY ARE OVER -- I THINK MOST OF US DO. WE TRY TO LEARN FROM EACH TRIP, EVENTFUL OR NOT. CONCLUSION: A FIRM (NOT HARD) LNDG, RESULTING IN IMMEDIATE GND SPOILERS DEPLOYMENT WOULD PROBABLY HAVE PREVENTED THE WING ROCK. THIS APCH REQUIRED A LOT OF WORK ALL THE WAY TO THE GND BUT THE TOUCHDOWN WAS TOO GENTLE (I GUESS I WORKED TOO HARD). I HAVE A LOT OF TIME IN THIS ACFT. I AM STILL TRYING TO GET IT RIGHT ALL THE TIME.

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.

Experienced in aircraft type, captain had more wing roll around the longitudinal axis of the aircraft during landing in strong gusty winds than anticipated. He was concerned that he had struck a wingtip, but subsequent aircraft inspection did not show any scraping.