# Nadcap Audit Checklists: Heat Treatment (AC7102), Welding (AC7110) and Composites (AC7118) > Source: https://netray.co/tools/nadcap-audit-checklists-heat-treat-welding-composites > Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems. > Section: Free Tools ## Short answer Pre-audit checklists organised by special process: heat treating, welding and composites, plus common items every Nadcap audit checks. Tick items, export your status. ## Category aerospace-defense ## Industry Aerospace ## Audience - Heat treat shop quality manager - Welding engineer - Composites quality engineer ## Tool **Kind:** checklist **Groups:** #### Common to every Nadcap audit (AC7004 quality system and job audit) **Items:** **Text:** Quality system documents and procedures are current and match what operators actually do **Critical:** true **Text:** Contract and customer flow-down requirements are reviewed and recorded for each job **Critical:** true **Text:** Personnel training and qualification records are complete and current for each special process operator **Critical:** true Calibration system covers every gauge, thermocouple and instrument used, with due dates controlled Nonconforming material process includes segregation, disposition authority and customer notification where required Internal audits cover the special process and last year's Nadcap findings are closed with root cause Records retention matches the longest customer requirement A job audit file is ready: a recent job with PO, traveler, process records, test results and certificate #### Heat treating (AC7102 and related pyrometry requirements) **Items:** **Text:** Furnace pyrometry follows the referenced pyrometry specification (for example AMS2750): class, instrumentation type and survey intervals are set per furnace **Critical:** true **Text:** System accuracy tests and temperature uniformity surveys are in date for every furnace in use **Critical:** true **Text:** Control and recording instruments are calibrated, and thermocouple usage and replacement are tracked **Critical:** true Load thermocouples or the approved alternative are used as the customer specification requires Quench media (polymer, oil, water) is tested at the defined interval, with concentration and temperature controlled Material specification and heat treat specification revision (for example AMS2759 family) are on the traveler Hardness or conductivity testing equipment is verified with reference blocks and test coupons are used as required Furnace load charts, soak time and cooling rate records are reviewed before release Atmosphere and vacuum furnace checks, such as leak-up rate, are recorded where applicable #### Welding (AC7110 and the applicable welding specification) **Items:** **Text:** Weld procedures are qualified to the customer-specified or industry specification and the records are available **Critical:** true **Text:** Welders and welding operators are qualified for the process and material, with continuity records current **Critical:** true Filler metal and shielding gas are certified, controlled, and traceable to the weld record Welding equipment calibration and maintenance, including meters and gauges, is current Joint preparation, cleaning and fit-up are inspected before welding Weld inspection includes visual, NDT as specified, and NDT personnel are qualified Repair weld procedures and limits are defined, and repairs are recorded and approved Distortion control, preheat and post-weld heat treatment follow the procedure Test coupons are made, tested and recorded as the specification requires #### Composites (AC7118 and the applicable material and process specifications) **Items:** **Text:** Prepreg and adhesive storage, freezer temperature records and out-time tracking are controlled and traceable to the lot **Critical:** true **Text:** Cleanroom or layup area environment (temperature, humidity, particulates) is monitored and recorded **Critical:** true **Text:** Cure cycles use calibrated ovens or autoclaves, with thermocouple placement and cycle records reviewed per part **Critical:** true Ply tables, tool and bagging instructions match the engineering definition revision Test panels and coupons are produced and tested to qualify each batch or cure as required Material receiving tests and certificates are checked against the specification Trimming, drilling and machining are controlled, with dust and contamination managed NDT such as ultrasonic inspection follows qualified procedures and personnel Bonding surface preparation and bondline controls are documented and verified **Scoring Note:** This is a preparation aid built from the typical areas Nadcap auditors review, not the official audit checklist. Use the current AC7102, AC7110 and AC7118 checklists from PRI eAuditNet for your merit status. Critical items map to areas where findings are most common, so close them first. ## Content **Intro:** Nadcap audits special processes against detailed checklists from PRI. These preparation checklists cover the common quality system items, then heat treating (AC7102), welding (AC7110) and composites (AC7118), so you can find gaps before the auditor does. Tick items, see your readiness score, and export a status to PDF. **Sections:** #### How to use these Nadcap checklists **Body:** Start with the common group because every Nadcap audit examines the quality system and a job audit. Then work through the group for your process. Mark an item only when you can show the record, not when you believe it is fine. For each unticked item, write down an owner and a date. Do a mock audit 6 to 8 weeks before the real audit using the official checklist for your commodity, which you can download after you are enrolled in eAuditNet. Review your last audit's findings first, because repeated findings are treated seriously. **Bullets:** - Use the official, current checklist revision for your audit - Prepare a job audit package in advance - Check subcontracted and customer-approved sources - Close all earlier corrective actions with root cause evidence #### What a Nadcap audit examines **Body:** A Nadcap audit has two parts: the quality system and the special process, usually including a review of one or more jobs from start to finish. Auditors look for objective evidence that the process is controlled, the people are qualified, the equipment is calibrated and the product meets the specification. Findings are written against checklist questions, and you provide a root cause and corrective action within the PRI timelines. Merit approval and its duration depend on how many findings you receive and how you respond. Customers such as primes use Nadcap accreditation to approve suppliers, though they may add their own requirements. #### Typical findings by process **Body:** In heat treating, pyrometry gaps are the largest category: surveys overdue, thermocouples used beyond their allowed use, and test instruments out of calibration. In welding, expired welder continuity records, missing procedure qualification evidence and uncontrolled filler metal traceability appear often. In composites, material out-time not tracked, freezer excursions without a disposition, and cure thermocouple records that do not match the part appear regularly. Use these as a prompt for your own mock audit, not as a complete list. #### Common mistakes **Body:** Preparing only the paperwork and not the floor is a mistake: auditors interview operators and observe the process. Another is using an outdated specification revision on the traveler because the ERP routing note was never updated. A third is poor root cause analysis in the response, which can lead to repeat findings. Keep specification revision, calibration and training data in a system where an auditor's question can be answered in minutes. **Cta:** Netray builds private AI over ERP and quality records on your own servers, so a question like which furnace surveys are due in the next 60 days can be answered without sending data outside your network. **Faq:** #### Which Nadcap checklist applies to heat treating? **Answer:** AC7102 is the Nadcap audit criteria for heat treating, used with the AC7004 quality system checklist. It references pyrometry requirements such as AMS2750 and the customer or material heat treat specifications. #### Where do I get the official Nadcap checklists? **Answer:** PRI publishes them, and accredited or applying suppliers access them through eAuditNet. Always use the revision that applies on your audit date, as checklists are updated periodically. #### How long does Nadcap merit last? **Answer:** Merit duration depends on your audit results and history, commonly 12 months for new or higher finding counts and longer for strong performers. Check the current PRI rules for your commodity. #### Can one checklist cover all special processes? **Answer:** No. Each special process has its own checklist, plus the common quality system questions. A shop that does heat treat and welding will be audited against each applicable checklist. ## Search terms nadcap for heat treatment, nadcap welding checklist, nadcap composites checklist, nadcap audit checklist, ac7102 heat treating checklist, ac7110 welding checklist, ac7118 composites checklist, nadcap audit preparation --- Talk to an engineer: https://netray.co/contact?intent=erp_ai | Machine catalog: https://netray.co/agent/catalog.json