Department of the Air Force, Pacific Air Forces, 15 CONS, 90 G Street, Hickam AFB, HI, 96853-5230

B -- BOILER USEFUL LIFE STUDY SOL F6460500Q0366 DUE 052600 POC Alison Miki, Contract Specialist, Phone (808)449-6860 x608, Fax (808)449-7026, Email alison.miki@hickam.af.mil -- Darrell Strahan, Contract Specialist, Phone (808)449-6860 ext 613, Fax (808)449-7026, Email WEB: Visit this URL for the latest information about this, http://www.eps.gov/cgi-bin/WebObjects/EPS?ACode=M&ProjID=F6460500Q0366 &LocID=588. E-MAIL: Alison Miki, alison.miki@hickam.af.mil. The following questions were received in response to RFQ #F6460500Q0366. The government's response follows each question. Question #1: Can I get a copy of the boiler drawings, a side view of the boiler. Boiler manufacturer, year built, and operating frequency. Answer #1: Drawing will be available at the Central Heat and Power Plant at the time of the on-site inspection. Question #2: Fire Box-number of tubes on front, rear and side walls, diameter and wall thickness of tubes. Distance from floor of the boiler to the roof. Any areas covered with refractory or flame spray. Answer #2: Front-wall 34 tubes, rear-wall 34 tubes, side-wall 152 tubes @ 3-1/4_ outside diameter and 24_ from center of the mud drum and steam drum. Refractory is on the peer tubes. Question #3: Dual or single drum generating section. Number of tubes in generating section, and distance from steam drum to mud drum, diameter and wall thickness of tubes. Answer #3: Steam and mud drums in each boiler with 714 generating tubes @ 2-1/2_ diameter. Length anywhere from 20_ 5-3/4_ to 25_ 8-1/4_. Question #4: Number of back pass openings, super heat and economizer sections. Number of tubes across each section and distance from front to rear. Answer #4: Three access hatches to economizers on the side wall, one hatch on top, one hatch on each side of super heater. All the tubes are accessible except between drum and lower rear header. Question #5: Do you have any history of wear areas, blown tubes, if so what sections of the boiler? Has there been any past inspections conducted, or do you have a scope of work for an ultrasonic thickness survey? Answer #5: Boiler #5 History: side-wall leak in #1 tube 1982; economizer lower header leak 1986; super heater tube leak in tube #37 1988; and super heater tube leak #15 1997. Boiler #6 History: rear header tube leak 1977; four firewall tubes cracked 1979; two super heater tubes leak 1985; economizer tube leak in 1986; economizer 21st row 5th tube leak, 18th row 5th tune and 22nd row 4th tube leak in 1986; superheater north side tube #5 leak 1989; and 31st and 46th super heater tubes leak 1990. Inspections are conducted annually. No statement of work is available for an ultrasonic survey. Question #6: Will this inspection include other components of the boiler? Deareator tank, condenser or the main, hot and cold steam piping. Answer #6: No this study will not include other boiler components. Question #7: What are the proposed dates for this inspection to be started on, and duration of time allotted for the inspection to be completed in? Answer #7: In accordance with the synopsis/solicitation, the on-site inspection is to be conducted during the week of 18 June 2000. The contractor is to specify proposed on-site inspection dates during the week of 18 June. A final report documenting the boiler useful life study shall be provided to the government not later than 45 days following completion of the on-site inspection by the contractor. Posted 05/24/00 (D-SN457988). (0145)

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