Environmental qualification
DO-160 Section 22 support for waveform sets matched to zones and wiring
This review supports equipment suppliers, avionics suppliers, OEMs during Lightning qualification planning or finding. EE reads waveform set and level selection against aircraft lightning zoning and wiring exposure, pin versus cable bundle test rationale, equipment performance criteria during strikes against configuration records, approval assumptions, and the cited source material. The buyer receives a concise package showing what is proven, what is inconsistent, and what should be resolved before submittal, installation, import, or purchase.
What gets reviewed
- Trace waveform set and level selection against aircraft lightning zoning and wiring exposure against the claim it supports.
- Challenge pin versus cable bundle test rationale against the claim it supports.
- Reconcile equipment performance criteria during strikes against the claim it supports.
- Confirm connection between equipment-level results and the aircraft indirect-effects certification argument against the claim it supports.
- Index approval basis against the claim it supports.
- Compare configuration definition against the claim it supports.
Scope this review
Tell us the asset, the event, and the evidence in scope, and we will outline a focused first engagement.
Identify what is missing against the means of compliance.
What gets validated
- Limit carryover: waveform set and level selection against aircraft lightning zoning and wiring exposure fails review if the cited record cannot be tied to the current baseline.
- Source control: pin versus cable bundle test rationale fails review if the cited record cannot be tied to the current baseline.
- Closure owner: equipment performance criteria during strikes fails review if the cited record cannot be tied to the current baseline.
- Configuration match: connection between equipment-level results and the aircraft indirect-effects certification argument fails review if the cited record cannot be tied to the current baseline.
- The review notes that evidence link: approval basis fails review if the cited record cannot be tied to the current baseline.
Evidence normally required
- Analysis note: waveform set and level selection against aircraft lightning zoning and wiring exposure
- Manual source: pin versus cable bundle test rationale
- Configuration item: equipment performance criteria during strikes
- Closure evidence: connection between equipment-level results and the aircraft indirect-effects certification argument
- Baseline record: approval basis
- Test file: configuration definition
Common discrepancies
- Buyer concern: levels picked without any aircraft zoning input.
- Program risk: single-stroke testing where multiple-stroke and multiple-burst apply.
- Authority question: interface circuits qualified with the wrong waveform for their line length and shielding.
- Finding in records: baseline does not match the delivered records.
How the work runs
Frame 160 Section
Confirm the exact event, affected file set, buyer role, and decision standard before any waveform set and level selection against aircraft lightning zoning and wiring exposure is treated as sufficient.
Trace Transients Support
Walk the named evidence from index entry to source artifact and mark where the trail supports, conflicts with, or fails to answer the page-specific question.
Sort Review Waveform
Group exceptions by closure route: document retrieval, data correction, engineering disposition, authority response, or contractual decision.
Package Matched Zones
Deliver the exception list, evidence map, and owner sequence in a form that can move directly into remediation, submittal cleanup, or transaction negotiation.
What the buyer receives
- The review notes that evidence map for DO-160 Section 22 Lightning Transients
- Discrepancy register for DO-160 Section 22 Lightning Transients
- Applicability and approval basis summary
- Source record request list
Who uses the output
- EMC engineers use the map to brief the decision.
- qualification engineers use the register to assign closure.
- certification liaisons use the request list to collect source records.
How the work fits into the transaction or program
Do the Section 22 induced lightning test waveforms, levels, and application methods (pin injection versus cable bundle) match the aircraft zoning and wiring the equipment actually lives on. The evidence set centers on the waveform set and level selection against aircraft lightning zoning and wiring exposure, pin versus cable bundle test rationale, equipment performance criteria during strikes, and the connection between equipment-level results and the aircraft indirect-effects certification argument; Failure. The likely weak points are levels picked without any aircraft zoning input, single-stroke testing where multiple-stroke and multiple-burst apply, and interface circuits qualified with the wrong waveform for their line length and shielding. The output gives the EMC engineer a cleanup register for DO-160 Section 22 support for waveform sets matched to zones and wiring before lightning qualification planning or finding.
Start with a single asset
Reduce finding cycles by checking the package first.
Regulatory limits
EE does not certify equipment, approve installations, or declare an aircraft compliant. The output identifies supportable claims, missing records, and questions that need applicant or authority disposition.
Specific to this review
- do the Section 22 induced lightning test waveforms, levels, and application methods (pin injection versus cable bundle) match the aircraft zoning and wiring the equipment actually lives on.
- Waveform set and level selection against aircraft lightning zoning and wiring exposure often controls whether later summaries can be trusted.
- Levels picked without any aircraft zoning input is treated as a record gap until an owner closes it.
- FAA and EASA evidence should stay distinguishable from commercial claims and installer notes.
- The scope uses the 160 Section Lightning Transients question as the control point, so the review stays tied to Lightning qualification planning or finding and the buyer decision behind it.
- The evidence starts with Waveform set and level selection against aircraft lightning zoning and wiring exposure and follows Support Evidence Review Waveform references until every exception has a source location and a reason code.
- The finding logic separates missing paperwork, conflicting status, stale revision data, and unsupported disposition because each class closes through a different owner.
- The timing matters for EMC engineer: the output is useful only if the unresolved items are visible before acceptance, submittal, handback, or negotiation pressure fixes the sequence.
- The boundary control keeps Sets Matched Zones Wiring questions in the records or certification lane and sends technical acceptance issues to the authorized people who own them.
- The handoff value comes from Evidence map for DO-160 Section 22 Lightning Transients; it gives the next reviewer a precise map instead of another broad request for a better file.
Sources
Frequently asked questions
What makes this standards review different from a general file audit?
The scope is tied to 160 section lightning transients and to the decision named in the request. A general audit can list weak records; this pass ranks the gaps by whether they block lightning qualification planning or finding or can be closed later without changing the decision.
What evidence has to be available before this work starts?
The starting point is waveform set and level selection against aircraft lightning zoning and wiring exposure, the current status source, and any index or matrix that tells reviewers where the supporting artifact should live. Missing inputs are logged as findings rather than filled with assumptions.
Who decides whether an open item is acceptable?
The review explains what the evidence supports and gives emc engineer a closure path. Acceptance remains with the buyer, operator, authority, delegated engineer, or authorized person responsible for the underlying airworthiness or certification decision.
Relevant glossary terms
Related pages
Where this fits
Talk to an engineer who has done this work
We will walk through your current state, the records or evidence involved, and a scoped first engagement.
Talk through the aircraft, records, evidence, deadline, and next useful step.