Large transport suffered a hard landing.

Attributes
ACN	122227
Time
Date	198909
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : den
State Reference	CO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Dusk
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 15000 flight time type : 4000
ASRS Report	122227
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	inflight encounter : weather other anomaly
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

ILS 35R den. WX radar and engine heat used throughout the arrival and approach. Stabilized, coupled approach in smooth conditions with mod rain. Autoplt disconnected at 100', trim and power satisfactory after disconnect. Excessive sink rate detected immediately thereafter. Applied power and pitched up but contacted ground anyway. During the recovery the aircraft bounced twice, landed and rolled out normally. The tailskid was damaged and several interior panels fell down. No injuries were incurred. WX conditions may have contributed to compromising our ability to detect sink rate, but I felt touchdown zone conditions were adequate for a crew of our experience to complete the approach successfully. The sensation experienced was very much like a windshear or wake turbulence and I wonder if traffic ahead or departing the parallel runway might have had an influence.

Original NASA ASRS Text

Title: LGT SUFFERED A HARD LNDG.

Narrative: ILS 35R DEN. WX RADAR AND ENGINE HEAT USED THROUGHOUT THE ARR AND APCH. STABILIZED, COUPLED APCH IN SMOOTH CONDITIONS WITH MOD RAIN. AUTOPLT DISCONNECTED AT 100', TRIM AND POWER SATISFACTORY AFTER DISCONNECT. EXCESSIVE SINK RATE DETECTED IMMEDIATELY THEREAFTER. APPLIED POWER AND PITCHED UP BUT CONTACTED GND ANYWAY. DURING THE RECOVERY THE ACFT BOUNCED TWICE, LANDED AND ROLLED OUT NORMALLY. THE TAILSKID WAS DAMAGED AND SEVERAL INTERIOR PANELS FELL DOWN. NO INJURIES WERE INCURRED. WX CONDITIONS MAY HAVE CONTRIBUTED TO COMPROMISING OUR ABILITY TO DETECT SINK RATE, BUT I FELT TOUCHDOWN ZONE CONDITIONS WERE ADEQUATE FOR A CREW OF OUR EXPERIENCE TO COMPLETE THE APCH SUCCESSFULLY. THE SENSATION EXPERIENCED WAS VERY MUCH LIKE A WINDSHEAR OR WAKE TURBULENCE AND I WONDER IF TFC AHEAD OR DEPARTING THE PARALLEL RWY MIGHT HAVE HAD AN INFLUENCE.

Data retrieved from NASA's ASRS site as of August 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.